Hemmi / Post

Hemmi 256 Full Size Electronics & Communications Slide Rule w/Original Leather Case (Very good condition)
Hemmi 256 Full Size Electronics & Communications Slide Rule w/Original Leather Case (Very good condition)

Hemmi 256 Full Size Electronics & Communications Slide Rule w/Original Leather Case (Very good condition)

USD $175

10″ Sun/Hemmi Electronics and Communications Slide Rule Powerful, new full sized rule with leather case, engraved black/red scales, adjustable bamboo body, framed glass cursor.  An uncommon and useful rule.

These rules and cases are in very good condition.

(19 Scales)
FRONT – db, Neper, DF [ CF, CIF, CI, C, ] D, LL3, LL2, LL1
BACK – A, L, [ C, SI, TI ] D, Lambda, F

Stock: 2

Place order

Hemmi 256 Full Size Electronics & Communications Slide Rule w/Original Leather Case (Good condition)
Hemmi 256 Full Size Electronics & Communications Slide Rule w/Original Leather Case (Good condition)

Hemmi 256 Full Size Electronics & Communications Slide Rule w/Original Leather Case (Good condition)

USD $150

10″ Sun/Hemmi Electronics and Communications Slide Rule Powerful, new full sized rule with leather case, engraved black/red scales, adjustable bamboo body, framed glass cursor.  An uncommon and useful rule.

These rules are in good condition, and come with their original leather cases, which are in poor condition.

(19 Scales)
FRONT – db, Neper, DF [ CF, CIF, CI, C, ] D, LL3, LL2, LL1
BACK – A, L, [ C, SI, TI ] D, Lambda, F

Stock: 2

Place order

Hemmi 256 Full Size Electronics Slide Rule w/Cardboard 2-Part Case (Fair condition)
Hemmi 256 Full Size Electronics Slide Rule w/Cardboard 2-Part Case (Fair condition)

Hemmi 256 Full Size Electronics Slide Rule w/Cardboard 2-Part Case (Fair condition)

USD $125

10″ Sun/Hemmi Electronics and Communications Slide Rule Powerful, new full sized rule with leather case, engraved black/red scales, adjustable bamboo body, framed glass cursor.  An uncommon and useful rule.

Rule is in fair condition, cardboard case is damaged and shows signs of heavy wear.

(19 Scales)
FRONT – db, Neper, DF [ CF, CIF, CI, C, ] D, LL3, LL2, LL1
BACK – A, L, [ C, SI, TI ] D, Lambda, F

Stock: 1

Place order

Odelco / Hemmi 266 Full Size Electronics Slide Rule w/Green Leather Case (New / Mint condition)
Odelco / Hemmi 266 Full Size Electronics Slide Rule w/Green Leather Case (New / Mint condition)

Odelco / Hemmi 266 Full Size Electronics Slide Rule w/Green Leather Case (New / Mint condition)

USD $395

10″ Sun/Hemmi Electronics Slide Rule

This is a more advanced version of the 256 Electronics & Communications rule, with leather case, engraved black/red scales, adjustable bamboo body, framed glass cursor.  This is an uncommon rule, with dedicated scales for calculating capacitance, induction, and resistance.

Rule is in mint condition, and includes its original, green, leather case.

(21 Scales)
FRONT- LL/3, LL/2, LL2, A, [B, BI, CI, C] D, dB / L, S, T
BACK- F, P [Q, L, C, Cf, Cz] L, Z, Lambda

Stock: 1

Place order

Post 1447 Full Size Student Slide Rule (Good condition, no case)
Post 1447 Full Size Student Slide Rule (Good condition, no case)

Post 1447 Full Size Student Slide Rule (Good condition, no case)

USD $29

This is an introductory student rule with 9 scales, and useful formulas and conversion data tables on the reverse side.  Great for beginners and collectors alike.

These rules are in good condition, but do not have a case.

Scales include:
Front – A, B, CI, C, D, K, S, L, T
Back – Formulas and data table

Stock: 2

Place order

Geotec (Hemmi) 341-3526 Full Size Slide Rule w/Two-Part Case
Geotec (Hemmi) 341-3526 Full Size Slide Rule w/Two-Part Case

Geotec (Hemmi) 341-3526 Full Size Slide Rule w/Two-Part Case

USD $35

An excellent beginner/student slide rule featuring useful reference data and formulas on the reverse side.  Manufactured in Japan by Hemmi.

Great as a starter rule for your collection, or as a gift.  Includes the original, two-part, plastic case.

(9 Scales)

FRONT – A, [B, CI, C] D, K
BACK – [S, L, T] Formulas and reference data

Stock: 1

Place order

Teledyne-Post 44BA-470 Full Size Slide Rule (New / Mint condition)
Teledyne-Post 44BA-470 Full Size Slide Rule (New / Mint condition)

Teledyne-Post 44BA-470 Full Size Slide Rule (New / Mint condition)

USD $65

This is a brand new, still sealed in its factory plastic, beginner/student slide rule featuring useful reference data and formulas on the reverse side.  It is a later production model, so while it has a bamboo laminated body, the body is primarily plastic.  Manufactured in Japan by Hemmi for Teledyne Post.

Great as a starter rule for your collection, or as a gift.  Does not include a case.

(10 Scales)

FRONT – A, [B, CI, C] D, K
BACK – [S, L, T] Formulas and reference data

Stock: 2

Place order

Post 1445 Beginner Full Size Slide Rule (New / Mint condition)
Post 1445 Beginner Full Size Slide Rule (New / Mint condition)

Post 1445 Beginner Full Size Slide Rule (New / Mint condition)

USD $45

This is a brand new, still sealed in its factory plastic, beginner/student slide rule.  Bamboo laminated body, manufactured in Japan by Hemmi for Teledyne Post.

Great as a starter rule for your collection, or as a gift.  Does not include a case.

(10 Scales)

FRONT – K, DF, CF, CI, C, D, A
BACK – [TI, L, SI]

Stock: 1

Place order

Hemmi 256 Full Size Electronics & Communications Slide Rule w/Sphere Duplex Case (Good condition)
Hemmi 256 Full Size Electronics & Communications Slide Rule w/Sphere Duplex Case (Good condition)

Hemmi 256 Full Size Electronics & Communications Slide Rule w/Sphere Duplex Case (Good condition)

USD $165

10″ Sun/Hemmi Electronics and Communications Slide Rule Powerful, new full sized rule with leather case, engraved black/red scales, adjustable bamboo body, framed glass cursor.  An uncommon and useful rule.

These rules are in good condition, with some discoloration, and come with a replacement Sphere Research padded nylon duplex case (features carrying ring on the reverse of the case).

(19 Scales)
FRONT – db, Neper, DF [ CF, CIF, CI, C, ] D, LL3, LL2, LL1
BACK – A, L, [ C, SI, TI ] D, Lambda, F

Stock: 2

Place order

Hemmi 255D Full Size Electrical Engineering Rule w/Case (New / Mint condition)
Hemmi 255D Full Size Electrical Engineering Rule w/Case (New / Mint condition)

Hemmi 255D Full Size Electrical Engineering Rule w/Case (New / Mint condition)

USD $195

This is a new/mint condition rule, still in its original factory plastic. A specialist, electrical engineering rule that features log log scales, with hyperbolic sine and tangent scales, additional vector/radian engineering scales, and inverted sine/tangent scales. Has folded scales, extended/inverted trig scales, and 3 log log scales. A very nice high end bamboo duplex rule, with a very uncommon scale set.

This rule comes in its original factory plastic, and two-piece carton case (case is in moderate condition).

Scales include:

Front – Sh1, Sh2, Th, A, [ B, TI1, TI2, SI, C, ] D, DI, x, theta
Back – L, K, DF, [ CF, CIF, CI, C, ] D, LL3, LL2, LL1

Stock: 1

Place order

Hemmi 251 Bamboo Full Size Slide Rule w/Leather Case & Manual (New / Mint condition)
Hemmi 251 Bamboo Full Size Slide Rule w/Leather Case & Manual (New / Mint condition)

Hemmi 251 Bamboo Full Size Slide Rule w/Leather Case & Manual (New / Mint condition)

USD $125

Hemmi 251 Bamboo Full Size Slide Rule in new / mint condition, including the original leather case and English instruction manual.  Rule comes in its original factory plastic wrap.  Made in Japan.

(19 scales)
Front – L, DF, CF, CIF, CI, C, D, LL3, LL2, LL1
Back – K, A, B, T, S, ST, C, D, DI

Stock: 1

Place order

Hemmi 256 Full Size Electronics & Communications Slide Rule w/Plastic Case (New / Mint condition)
Hemmi 256 Full Size Electronics & Communications Slide Rule w/Plastic Case (New / Mint condition)

Hemmi 256 Full Size Electronics & Communications Slide Rule w/Plastic Case (New / Mint condition)

USD $195

10″ Sun/Hemmi Electronics and Communications Slide Rule Powerful, new full sized rule with leather case, engraved black/red scales, adjustable bamboo body, framed glass cursor.  An uncommon and useful rule.

This is a later example of the rule that comes in the two part, plastic, case.

(19 Scales)
FRONT – db, Neper, DF [ CF, CIF, CI, C, ] D, LL3, LL2, LL1
BACK – A, L, [ C, SI, TI ] D, Lambda, F

Stock: 1

Place order

Hemmi 256 Full Size Electronics & Communications Slide Rule w/Leather Case (New / Mint condition)
Hemmi 256 Full Size Electronics & Communications Slide Rule w/Leather Case (New / Mint condition)

Hemmi 256 Full Size Electronics & Communications Slide Rule w/Leather Case (New / Mint condition)

USD $195

10″ Sun/Hemmi Electronics and Communications Slide Rule Powerful, new full sized rule with leather case, engraved black/red scales, adjustable bamboo body, framed glass cursor.  An uncommon and useful rule.

(19 Scales)
FRONT – db, Neper, DF [ CF, CIF, CI, C, ] D, LL3, LL2, LL1
BACK – A, L, [ C, SI, TI ] D, Lambda, F

Stock: 1

Place order

Hemmi/Post 1461 Versalog Pocket Slide Rule w/SRC Leather Clip Case (Very good condition)
Hemmi/Post 1461 Versalog Pocket Slide Rule w/SRC Leather Clip Case (Very good condition)

Hemmi/Post 1461 Versalog Pocket Slide Rule w/SRC Leather Clip Case (Very good condition)

USD $195

6″/5″Pocket Slide Rule
This is Hemmi and POST’s famous Versalog pocket duplex rule (1461), and is the companion to the full sized 1460 Versalog. This has blue and red scale markings with the late GREEN COS scale and adjustable metal end braces.

A powerful but lightweight pocket duplex rule, this has 8 Log Log scales, split high resolution square root scales (R1/R2), folded and trig scales.

Made by Hemmi in Japan, comes with a replacement Sphere leather clip case.

(23 Scales)
Front – LL/1, LL/2, LL/3, [ T, SecT/ST, Cos/S, C, ] D, LL3, LL2, LL1
Back – LL0, LL/0, K, DF, [ CF, CIF, CI, C, ] D, R1, R2, L

Stock: 1

Place order

Post / Hemmi 1447 – Full Size Student Slide Rule w/Red Carboard Case (Good condition)
Post / Hemmi 1447 – Full Size Student Slide Rule w/Red Carboard Case (Good condition)

Post / Hemmi 1447 – Full Size Student Slide Rule w/Red Carboard Case (Good condition)

USD $35

This is an introductory student rule with 9 scales, and useful formulas and conversion data tables on the reverse side.  Great for beginners and collectors alike.

These specific rules come in the older style cardboard case.  Both cases and rules show signs of wear, but scales, slides, cursors, and markings are in good condition.

Scales include:
Front – A, B, CI, C, D, K, S, L, T
Back – Formulas and data table

Stock: 12

Place order

Post 1462 Full Size Slide Rule w/Case (New, age discoloration)
Post 1462 Full Size Slide Rule w/Case (New, age discoloration)

Post 1462 Full Size Slide Rule w/Case (New, age discoloration)

USD $69

An unusual Post rule that was made entirely in the US, and not a Hemmi produced rule with a Post marking.  Wood body rule, with black and red scale marking, all plastic cursor.

(18 Scales)
Front – T, DF, [CF, CIF, CI, C], D, S, T
Back – LL0, LL00, A, [B, K, L, C], LL3, LL2, LL1

Stock: 1

Place order

Hemmi/Post 1461 Versalog Pocket Slide Rule w/Original Post Clip Case (Used, fair condition)
Hemmi/Post 1461 Versalog Pocket Slide Rule w/Original Post Clip Case (Used, fair condition)

Hemmi/Post 1461 Versalog Pocket Slide Rule w/Original Post Clip Case (Used, fair condition)

USD $185

6″/5″Pocket Slide Rule
This is Hemmi and POST’s famous Versalog pocket duplex rule (1461), and is the companion to the full sized 1460 Versalog. This has blue and red scale markings with the late GREEN COS scale and adjustable metal end braces.

A powerful but lightweight pocket duplex rule, this has 8 Log Log scales, split high resolution square root scales (R1/R2), folded and trig scales.

Made by Hemmi in Japan, comes with the original leather Post clips case.

(23 Scales)
Front – LL/1, LL/2, LL/3, [ T, SecT/ST, Cos/S, C, ] D, LL3, LL2, LL1
Back – LL0, LL/0, K, DF, [ CF, CIF, CI, C, ] D, R1, R2, L

Stock: 1

Place order

Post 1444K Pocket Slide Rule w/Leather Clip Case (Used, good condition)
Post 1444K Pocket Slide Rule w/Leather Clip Case (Used, good condition)

Post 1444K Pocket Slide Rule w/Leather Clip Case (Used, good condition)

USD $85

5″ Pocket Mannheim Slide Rule

Beautiful miniature pocket bamboo rule with framed glass lens and embossed leather clip case.  Has inch scale side ruler, framed glass cursor, reversible slide with 3 additional scales.

Made by Hemmi in Japan.

(9 Scales and 5 inch side ruler)
Front inch – A, [ B, CI, C, ] D, K

Reverse – [ S, L, T ]

Stock: 6

Place order

Hemmi/Post 1461 Versalog Pocket Slide Rule w/Leather Clip Case (Excellent condition)
Hemmi/Post 1461 Versalog Pocket Slide Rule w/Leather Clip Case (Excellent condition)

Hemmi/Post 1461 Versalog Pocket Slide Rule w/Leather Clip Case (Excellent condition)

USD $225

6″/5″Pocket Slide Rule
This is Hemmi and POST’s famous Versalog pocket duplex rule (1461), and is the companion to the full sized 1460 Versalog. This has blue and red scale markings with the late GREEN COS scale and adjustable metal end braces.

A powerful but lightweight pocket duplex rule, this has 8 Log Log scales, split high resolution square root scales (R1/R2), folded and trig scales. A very attractive and hard to find rule, this style is always in high demand (because of the high performance, light weight and clip case), but hard to locate in good condition and an unmarked case.

Made by Hemmi in Japan, comes with a replacement Sphere Research leather clip case.

(23 Scales)
Front – LL/1, LL/2, LL/3, [ T, SecT/ST, Cos/S, C, ] D, LL3, LL2, LL1
Back – LL0, LL/0, K, DF, [ CF, CIF, CI, C, ] D, R1, R2, L

Stock: 1

Place order

Post (Hemmi) 1441 4″/5″ Pocket Slide Rule w/Original Leather Case & Magnifying Cursor (Used – Fair condition)
Post (Hemmi) 1441 4″/5″ Pocket Slide Rule w/Original Leather Case & Magnifying Cursor (Used – Fair condition)
Post (Hemmi) 1441 4″/5″ Pocket Slide Rule w/Original Leather Case & Magnifying Cursor (Used – Fair condition)

Post (Hemmi) 1441 4″/5″ Pocket Slide Rule w/Original Leather Case & Magnifying Cursor (Used – Fair condition)

USD $69

4″ Pocket Mannheim Slide Rule

Beautiful miniature pocket bamboo rule with framed magnifying glass lens and embossed leather case.

Has inch and cm scale side rulers, framed magnifying glass cursor, reversible slide with 3 additional scales. A very attractive and hard to find rule, this style is always in high demand (because of the light weight, magnifier and clip case).

Made by Hemmi in Japan.

(8 Scales, 2 Rulers)
Front inch – A, [ B, CI, C, ] D

Reverse – [ S, L, T ]

Stock: 2

Place order

Hemmi/Post 1461 Versalog Pocket Slide Rule w/ clip case (Good condition)
Hemmi/Post 1461 Versalog Pocket Slide Rule w/ clip case (Good condition)

Hemmi/Post 1461 Versalog Pocket Slide Rule w/ clip case (Good condition)

USD $195

6″/5″Pocket Slide Rule
This is Hemmi and POST’s famous Versalog pocket duplex rule (1461), and is the companion to the full sized 1460 Versalog. This has blue and red scale markings with the late GREEN COS scale and adjustable metal end braces.

A powerful but lightweight pocket duplex rule, this has 8 Log Log scales, split high resolution square root scales (R1/R2), folded and trig scales.

Made by Hemmi in Japan, comes with a leather clip case.

(23 Scales)
Front – LL/1, LL/2, LL/3, [ T, SecT/ST, Cos/S, C, ] D, LL3, LL2, LL1
Back – LL0, LL/0, K, DF, [ CF, CIF, CI, C, ] D, R1, R2, L

Stock: 1

Place order

Hemmi 149A Pocket Slide Rule w/Slip Case (NIB/mint)
Hemmi 149A Pocket Slide Rule w/Slip Case (NIB/mint)

Hemmi 149A Pocket Slide Rule w/Slip Case (NIB/mint)

USD $189

Brand new Hemmi 149A pocket rule, with the rule still sealed in its factory plastic sleeve.  In perfect condition, this is an excellent and versatile pocket rule with 21 scales.  Includes original leather slip case.

(21 Scales)
Front – LL/1, LL/2, LL/3, DF, [CF, CIF, C], D, LL3, LL2, LL1
Back – L, K, A, [B, TI, SI, C], D, LL0, LL/0

Stock: 1

Place order

Post (Hemmi) 1441 5″ Pocket Slide Rule w/Leather Case (New/mint)
Post (Hemmi) 1441 5″ Pocket Slide Rule w/Leather Case (New/mint)

Post (Hemmi) 1441 5″ Pocket Slide Rule w/Leather Case (New/mint)

USD $89

4″ Pocket Mannheim Slide Rule

Beautiful miniature pocket bamboo rule with framed magnifying glass lens and embossed leather case (branded for Signatics).

Has inch scale side ruler, framed magnifying glass cursor, reversible slide with 3 additional scales. A very attractive and hard to find rule, this style is always in high demand (because of the light weight, and magnifier).

Made by Hemmi in Japan.

(8 Scales and 4 inch side ruler)
Front inch – A, [ B, CI, C, ] D

Reverse – [ S, L, T ]

Stock: 1

Place order

Hughes-Owens (Hemmi) 1762 Pocket Slide Rule w/Slip Case
Hughes-Owens (Hemmi) 1762 Pocket Slide Rule w/Slip Case

Hughes-Owens (Hemmi) 1762 Pocket Slide Rule w/Slip Case

USD $90

5″/6″ Pocket Mannheim Slide Rule

Beautiful Hughes-Owens miniature pocket bamboo rule with framed glass cursor and embossed leather slip case with flap.

Has inch scale side ruler, reversible slide with 3 additional scales. A very attractive and hard to find rule, this style is always in high demand (because of the light weight and good feel), but hard to locate in good condition.  Made by Hemmi in Japan, but sold as Hughes-Owens in Canada (POST in the USA).  This is the same as the Post 1444.

(9 Scales and 5 inch side ruler)
Front inch – A, [ B, CI, C, ] D, K

Reverse – [ S, L, T ]

Stock: 1

Place order

Hemmi/Post 1461 Versalog Pocket Slide Rule w/Sphere clip case (Used, in fair condition)
Hemmi/Post 1461 Versalog Pocket Slide Rule w/Sphere clip case (Used, in fair condition)

Hemmi/Post 1461 Versalog Pocket Slide Rule w/Sphere clip case (Used, in fair condition)

USD $135

6″/5″Pocket Slide Rule
This is Hemmi and POST’s famous Versalog pocket duplex rule (1461), and is the companion to the full sized 1460 Versalog. This has blue and red scale markings with the late GREEN COS scale and adjustable metal end braces.

A powerful but lightweight pocket duplex rule, this has 8 Log Log scales, split high resolution square root scales (R1/R2), folded and trig scales. A very attractive and hard to find rule, this style is always in high demand (because of the high performance, light weight and clip case), but hard to locate in good condition and an unmarked case.

Made by Hemmi in Japan, comes with a replacement Sphere Research leather clip case.

(23 Scales)
Front – LL/1, LL/2, LL/3, [ T, SecT/ST, Cos/S, C, ] D, LL3, LL2, LL1
Back – LL0, LL/0, K, DF, [ CF, CIF, CI, C, ] D, R1, R2, L

Stock: 1

Place order

Post 1444K Pocket Slide Rule Box Set (NIB, cracked case)
Post 1444K Pocket Slide Rule Box Set (NIB, cracked case)
Post 1444K Pocket Slide Rule Box Set (NIB, cracked case)

Post 1444K Pocket Slide Rule Box Set (NIB, cracked case)

USD $125

5″ Pocket Mannheim Slide Rule

Beautiful miniature pocket bamboo rule with framed glass lens and embossed leather clip case. In its original plastic box set, case front is cracked.

Has inch scale side ruler, framed glass cursor, reversible slide with 3 additional scales. A very attractive and hard to find rule, this pocket style is always in high demand (because of the light weight and clip case), but hard to locate in good condition and an unmarked case.

Made by Hemmi in Japan.

(9 Scales and 5 inch side ruler)
Front inch – A, [ B, CI, C, ] D, K

Reverse – [ S, L, T ]

Stock: 1

Place order

Hemmi 143 4/5″ Pocket Slide Rule w/Case and Manual (NIB/Mint)
Hemmi 143 4/5″ Pocket Slide Rule w/Case and Manual (NIB/Mint)

Hemmi 143 4/5″ Pocket Slide Rule w/Case and Manual (NIB/Mint)

USD $89

New and in excellent condition, with the rule still in its factory sealed bag.  Includes the original manual and leather case, metric ruler along the upper edge.

(8 scales)
Front: A, B, CI, C, D [S, L, T]
Back: Blank

Stock: 1

Place order

Hughes Owens (Sun/Hemmi) Versalog 341-3010 Full Size Rule Box Set
Hughes Owens (Sun/Hemmi) Versalog 341-3010 Full Size Rule Box Set
Hughes Owens (Sun/Hemmi) Versalog 341-3010 Full Size Rule Box Set
Hughes Owens (Sun/Hemmi) Versalog 341-3010 Full Size Rule Box Set

Hughes Owens (Sun/Hemmi) Versalog 341-3010 Full Size Rule Box Set

USD $265

This is a new and complete box set for the Versalog 341-3010 full size rule originally made by Sun / Hemmi.  Rules are marked as being from Post, Hughes Owens, or GeoTec, but all bear the original Hemmi manufacturing mark.  Boxes are heavily distressed.

Includes rule, case, and user manual. Rule in mint condition. Book in good condition; case has some scrapes.

(23 scales)

Front: LL/1, LL/2, LL/3, TT, SecT / ST, Cos / S, C, D, LL3, LL2, LL1
Back: LL0, LL/0, K, DF, CF, CIF, CI, C, D, R1, R2, L

Stock: 1

Place order

Post Versalog 1460L Full Size Rule (new)
Post Versalog 1460L Full Size Rule (new)

Post Versalog 1460L Full Size Rule (new)

USD $265

10″, Engineering Versalog Slide Rule
We get only a few sets that are well cared for, these is in excellent condition. The rule and case are both free of marks, and ae clean and bright.

Laminated bamboo construction, self lubricating design.

Wears very well, and slides smoothly under all conditions. This is the classic high end slide rule from POST.

(23 Scales)
Front: L, LL/1 (e-0.01<-0.1), LL/2 (e-0.1<-1.0), LL/3 (e-1.0<-10), [ T, SRT, Cos/S, C, ] D, LL3 (e+1>10), LL2 (e+0.1>1.0), LL1 (e+.01>.1).
Back: LL/0 (e-.001<-.01), K, DF, [ CF, CIF, CI, C, ] D, R1, R2, LL0 (e+.001>.01)

Stock: 1

Place order

Teledyne Post 1447-22 Slide Rule Set (NIB)
Teledyne Post 1447-22 Slide Rule Set (NIB)

Teledyne Post 1447-22 Slide Rule Set (NIB)

USD $69

11″/10″ Full Size Slide Rule
The best known bamboo Mannheim rule offered by POST, with reversible slide, formulas and conversions on reverse side. White laminate, Sun/Hemmi Japanese bamboo construction, engraved scales in blue and red.  Sealed in original packaging, includes two part plastic case and instruction manual.

(9 Scales)
Front – A, [ B, CI, C, ] D, K
Back – Formulas and conversions,
reverse of slide is S, L, T

Stock: 2

Place order

Post 1452W Slide Rule Set (NIB)
Post 1452W Slide Rule Set (NIB)
Post 1452W Slide Rule Set (NIB)
Post 1452W Slide Rule Set (NIB)

Post 1452W Slide Rule Set (NIB)

USD $130

11″/10″ Full Size Slide Rule
The nicest Hemmi bamboo Mannheim rule offered by POST, with reversible slide, formulas and conversions on reverse side, side rulers in inches and cm. White laminate, Sun/Hemmi Japanese bamboo construction, engraved scales in blue and red. Rule condition is excellent, with only good condition cardboard box cases, all have marks, sticker residue or rubbed paint areas.

(9 Scales, 2 Rulers)
Front – inch / A, [ B, CI, C, ] D, K | cm
Back – Formulas and conversions, reverse of slide is S, L, T

Stock: 2

Place order

Hemmi 251 Bamboo Full Size Slide Rule (new/mint)
Hemmi 251 Bamboo Full Size Slide Rule (new/mint)

Hemmi 251 Bamboo Full Size Slide Rule (new/mint)

USD $115

Hemmi 251 Bamboo Full Size Slide Rule (new/mint)

(19 scales)
Front – L, DF, CF, CIF, CI, C, D, LL3, LL2, LL1
Back – K, A, B, T, S, ST, C, D, DI

Stock: 1

Place order

Hemmi P253 Vectorlog Full Size Slide Rule w/Display Case and Manual
Hemmi P253 Vectorlog Full Size Slide Rule w/Display Case and Manual

Hemmi P253 Vectorlog Full Size Slide Rule w/Display Case and Manual

USD $125

Hemmi P253 Vectorlog Full Size Slide Rule w/Display Case and Manual

(18 scales)
Front – LL3, LL2, DF, CF, CIF, CI, C, D, K, LL1
Back – K, A, B, TI2, TI1, SI, D, DI

Stock: 1

Place order

Hemmi 260 Full Bamboo Size Rule (new/mint)
Hemmi 260 Full Bamboo Size Rule (new/mint)

Hemmi 260 Full Bamboo Size Rule (new/mint)

USD $245

Hemmi 260 Full Bamboo Size Rule (new/mint)

(25 Scales)
Front – LL/1, LL/2, LL/3, DF, CF, CIF, CI, C, D, LL3, LL2, LL1
Back – LL/O, LL0, K, A, B, T, S, ST, C, D, DI, P, L

Stock: 1

Place order

Post (Hemmi) 1441 Pocket Slide Rule Box Set
Post (Hemmi) 1441 Pocket Slide Rule Box Set
Post (Hemmi) 1441 Pocket Slide Rule Box Set

Post (Hemmi) 1441 Pocket Slide Rule Box Set

USD $125

Beautiful miniature pocket bamboo rule with framed magnifying glass lens and embossed leather clip case. Mint condition NEW boxed set with manual!

Has inch scale side ruler, framed magnifying glass cursor, reversible slide with 3 additional scales. A very attractive and hard to find rule, this style is always in high demand (because of the light weight and clip case), but hard to locate in good condition and an unmarked case.

Made by Hemmi in Japan.

(8 Scales and 4 inch side ruler)
Front inch – A, [ B, CI, C, ] D

Reverse – [ S, L, T ]

Stock: 1

Place order

Sun Hemmi No. 50 Bamboo Slide Rule (Made in occupied Japan)
Sun Hemmi No. 50 Bamboo Slide Rule (Made in occupied Japan)
Sun Hemmi No. 50 Bamboo Slide Rule (Made in occupied Japan)

Sun Hemmi No. 50 Bamboo Slide Rule (Made in occupied Japan)

USD $135

An extremely rare bamboo rule, featuring metric/imperial rulers on the upper and lower edges, and conversion factors on the reverse side.  This rule was produced during the brief US occupation period post WWII, and is therefore marked “Made in Occupied Japan.”

(9 Scales)
Front – A, B, CI, C, D, K [S, L, T]
Back – Factors

Stock: 1

Place order

Post / Hemmi 1447 – Full Size Rule
Post / Hemmi 1447 – Full Size Rule

Post / Hemmi 1447 – Full Size Rule

USD $39

This is an introductory student rule with 9 scales, and useful formulas and conversion data tables on the reverse side.  Great for beginners and collectors alike.

Scales include:
Front – A, B, CI, C, D, K, S, L, T
Back – Formulas and data table

Stock: 5

Place order

Hemmi P50 Student Rule – Full Size Rule
Hemmi P50 Student Rule – Full Size Rule

Hemmi P50 Student Rule – Full Size Rule

USD $35

This is an excellent starter rule which features additional markings on the scales to help explain the core functions of multiplication and division.

Scales include:
Front – A, B, CI, C, D, K, S, L, T
Back – Blank

Stock: 3

Place order

Hemmi 255D (electrical engineering rule) – Full Size Rule
Hemmi 255D (electrical engineering rule) – Full Size Rule

Hemmi 255D (electrical engineering rule) – Full Size Rule

USD $195

Very good condition log log duplex rule, with hyperbolic sine and tangent scales, additional vector/radian engineering scales, and inverted sine/tangent scales. Has folded scales, extended/inverted trig scales, and 3 log log scales. A very nice high end bamboo duplex rule, with a very uncommon scale set.

This rule comes with its factory box, and carton slip case.

Scales include:

Front – Sh1, Sh2, Th, A, [ B, TI1, TI2, SI, C, ] D, DI, x, theta
Back – L, K, DF, [ CF, CIF, CI, C, ] D, LL3, LL2, LL1

Stock: 2

Place order

Hemmi 259D  – Full Size Rule
Hemmi 259D  – Full Size Rule

Hemmi 259D – Full Size Rule

USD $195

Log log duplex rule, similar to the POST Versalog, but with both A and B scales.  Has folded and extended trig scales, and 8 log log scales. A very nice high end bamboo duplex rule, and one of Hemmi’s most popular models outside North America.  This specific rule comes with the original factory box, and carton slide case instead of the leather case. THere is also one in stock with only the rule case and manual, but no box.

Scales include:
Front – LL/1 (e-0.01<-0.1), LL/2 (e-0.1<-1.0), LL/3 (e-1.0<-10), DF, [ CF, CIF, CI, C, ] D, LL3 (e+1>10), LL2 (e+0.1>1.0), LL1 (e+.01>.1).
Back – L, K, A, [ B, T, S, ST, C, ] D, DI, LL0 (e+.001>.01), LL/0

Stock: 2

Place order

Teledyne Post 44BB-100 – Full Size Rule
Teledyne Post 44BB-100 – Full Size Rule

Teledyne Post 44BB-100 – Full Size Rule

USD $75

One side of the case may say Teledyne Post, but the other definitely says Hemmi.  This is a beginner, single sided rule, that features feet on the reverse side for easier desktop use.  We’ve only got one manual in stock, so not all rules come with manuals.

Scales include:
Front – T, K, A, B, CI, C, D, L, S, ST
Back – Blank

Stock: 3

Place order

Hemmi P261 – Full Size Rule
Hemmi P261 – Full Size Rule

Hemmi P261 – Full Size Rule

USD $149

This 12 scale rule includes its original box and manual, and the rule features feet on the reverse side to enable easier desktop use.

Scales include:
Front – LL01, LL02, LL03, DF, CF, CIF, CI, C, D, LL3, LL2, LL1
Back – T, ST, K, A, B, BI, CI, C, D, L, P, S

Stock: 1

Place order

Hemmi 256 Electronics and Communications Full Size Rule (Good condition)
Hemmi 256 Electronics and Communications Full Size Rule (Good condition)

Hemmi 256 Electronics and Communications Full Size Rule (Good condition)

USD $175

Powerful, new full sized rule with leather case, engraved black/red scales, adjustable bamboo body, framed glass cursor.  An uncommon and useful rule.

Operating manual can be downloaded here.

Scales include:
Front – db, Neper, DF [ CF, CIF, CI, C, ] D, LL3, LL2, LL1
Back – A, L, [ C, SI, TI ] D, Lambda, F

Stock: 1

Place order

Hemmi 135 – Pocket Rule (NEW)
Hemmi 135 – Pocket Rule (NEW)
Hemmi 135 – Pocket Rule (NEW)

Hemmi 135 – Pocket Rule (NEW)

USD $110

While the box is a little worn, the rule itself is in mint/new condition and is still in its factory sealed plastic.  Includes original instruction manual and case.

Front – T, K, P, S, C, D, +3 other scales, L, LL1, LL2, LL3
Back – Blank

Stock: 1

Place order

Hemmi 64T – Full Size Rule
Hemmi 64T – Full Size Rule

Hemmi 64T – Full Size Rule

USD $75

This is a rule designed more for beginners, and incorporates a variety of useful features.  It includes metric rulers on both the upper and lower edges of the rule, however, the ruler on the lower edge places the “0” mark in the center of the rule with markings increasing outwards towards each end of the rule.

Scales include:
Front – K, A, B, BI, CI, C, D, DI, L, T2, T1, ST, S
Back – Unit conversion table, formula references, and usage instructions

Stock: 1

Place order

Hemmi 2634 Pocket Rule
Hemmi 2634 Pocket Rule

Hemmi 2634 Pocket Rule

USD $195

This bamboo rule is still in its original factory sealed plastic, however, the rule does show signs of discoloration and marking from having been stored for so long.  The case is also fairly worn and has lost its finish in multiple areas.  Ruler in inches along the upper edge of the rule.

Scales include the following:
Front – A, C, D, K, CF, DF, CI, L, TI1, TI2, SI1
Back – Blank

Stock: 1

Place order

Hemmi 60 7″ Pocket Rule
Hemmi 60 7″ Pocket Rule

Hemmi 60 7″ Pocket Rule

USD $125

Still in its original plastic sleeve and unopened, is this Hemmi 60 pocket rule.  Features metric and imperial rulers on the upper/lower edges of the rule.

10 scales.

Stock: 1

Place order

Hemmi Magnification 5″ Pocket Rule
Hemmi Magnification 5″ Pocket Rule

Hemmi Magnification 5″ Pocket Rule

USD $95

This early Hemmi pocket rule features a magnifying cursor, and an imperial unit ruler along the top edge of the rule.

Scales include:
Front – A, B, C, D, CI, S, L, T
Back – Blank

Stock: 1

Place order

Hemmi 135 Pocket Rule
Hemmi 135 Pocket Rule

Hemmi 135 Pocket Rule

USD $129

This advanced Hemmi pocket rule features a metric ruler along the upper edge, and 13 scales (5 regular sacles unmarked).

Scales include:
Front – P, S, T, K, L, LL1, LL2, LL3 (+5 unmarked scales)
Back – Blank

Stock: 1

Place order

Hemmi 7 Scale  Pocket Rule
Hemmi 7 Scale  Pocket Rule

Hemmi 7 Scale Pocket Rule

USD $35

This seven scale pocket rule features an unusual cursor design, with a bulkier metal frame on only three sides of the cursor.  Imperial/metric ruler on the upper and lower edges of the rule.  As is true of most Hemmi rules, this is a bamboo rule.

Scales include:
Front – A, B, C, D, S, L, T
Back – Blank

Stock: 1

Place order

Hemmi No. 30, 8 Scale Pocket Rule

Hemmi No. 30, 8 Scale Pocket Rule

USD $85

This bamboo,  eight scale, pocket rule features a metric ruler on the upper edge of the rule.  Includes original box, manual, and case.

Scales include:
Front – A, B, C, CI, D, S, L, T
Back – Blank

Stock: 2

Place order

Hemmi 2690,  Full Size Rule
Hemmi 2690,  Full Size Rule

Hemmi 2690, Full Size Rule

USD $65

This bamboo,  nine scale, full size rule features imperial and metric rulers on the upper and lower edges of the rule.  Includes original box, manual, and case.

Scales include:
Front – L, D, 360, C, D, A, S, S&T, T
Back – Formulas, data tables

Stock: 1

Place order

Hemmi Duplex 269 Full Size Rule

USD $225

Don’t let the box fool you, this rule is in excellent shape and is still in its sealed factory plastic.  It features 24 scales, and is a rule for advanced users.

Scales include:
Front – L, F, K, A, B, K’, CI, C, D, LL3, LL2, LL1
Back – CL, SL, M, TL, R, ST, T, S, C, D, DI, SIN/COS

Stock: 1

Place order