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Sphere Research Coporation, CLICK to visit! Sphere Research Corporation
3394 Sunnyside Rd.
West Kelowna, BC, Canada V1Z 2V4
Phone: +1 (250) 769-1834
FAX:+1 (250) 769-4106

A great source for test equipment, repairs, calibrations, useful metrology information, and of course, SLIDE RULES!

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NIB (NEW IN the BOX)
and MINT SLIDE RULES


FC 2/83N
go right to the catalog! Skip the INTRO, Go RIGHT to the CATALOG!

* To make your life easier, and help you find exactly what you want, we have broken the on-line slide rule catalogs into smaller sections. Just CLICK on the icon of the rule type you are looking for at the left, to see the matching catalog. Large graphical catalogs are a bit SLOW, please give them time to load.

You can order anything here just by picking up the phone, and calling (250) 769-1834 during normal office hours, 8:30AM to 4:30PM PST, or FAX to (250) 769-4106. OR, Email your order to Susan CLICKHERE.

*SHIPPING: Preferred and Alternate Methods as of 1/1/2011

*Preferred - Canadian ExpressPost which has guaranteed delivery time, is insured, and trackable on-line. We have an extraordinarily good success rate (better than 99.9%) with ExpressPost, so we highly recommend it, especially for one-of-a-kind items. It is cheaper than couriers, trackable, more reliable, fully insured and goes almost everywhere.

*USA destinations, shipping/handling minimum of $28.00 for any insured, trackable air shipment up to .5 kg/1 pound. (typical delivery within 5 business days).
*Canadian destinations are typically $12-18.00 (depending on location) with delivery within 2-3 business days.
* Europe, Australia, South America and other overseas areas via Canada Post International ExpressPost air mail insured service or Canada Post International Air Service where ExpressPost is not offered is $57.00 for parcels up to 500 grams/1 pound.

*Alternate - Regular Airmail. Virtually all of our shipment failures and delays have been because of this method, so it should be used with caution.

*USA Destinations are $12.00 for AirMail parcels up to 250 grams/.5 pound or $15.00 for parcels from 250 grams to 1 KG/2.2 pounds. This option offers no delivery guarantee or insurance so we can accept no liability for loss or damage.
*Canadian destinations are virtually identical to ExpressPost, so we do not offer this method within Canada, as it has no advantage to the customer.
*Europe, Australia, South America and other overseas areas via AirMail is $22.00 for parcels weighing up to 500 grams/1 pound. This service offers no guarantee, insurance or tracking and we can accept no liability for loss or damage. Transit times are unpredictable by this method, but service to Europe is generally very good, while service to South America is simply terrible.

*Alternate - Courier. This is usually the most expensive method, but can be the quickest.

*We can also ship FedEx or UPS when time or weight is critical, and overnight FedEx P1 shipping is available. Note that our pick-up cut-off time is noon PST for FedEx. We can use your account number, or bill to your credit card only. Our experience is that FedEx is the best solution for time critical shipments, UPS for heavy ones, but UPS has a higher damage rate.

* E-Mail Susan if you want a quote for shipping to other destinations, or for something heavy. Sorry, we can't safely send most individual small parts in a regular letter envelope, they get destroyed by the automated handling equipment. Sometimes we can ship very rugged parts in a small padded envelope by letter post. Ask Susan.

*There is a packing charge for large or heavy equipment, see the elsewhere in the FAQ for details.

*If we have your valid data on file, you can just click on the ORDER email link to place an order and indicate your approval to bill, and we will do the rest. We keep your active information for ONE YEAR for your convenience.

*If this is the first time you have dealt with us, you can phone +1 (250) 769-1834 or FAX +1 (250) 769-4106 to supply the billing info, or send it by the email link, as you prefer. We accept VISA/MC, international money order, Paypal (to Susan@Okanagan.net), and bank wire transfer. Please note that there are transaction fees with Paypal and wire transfer payments, the wire transfer fee is frankly horrifying.

We accept VISA/MC or international money order

* New In the Box (NIB) or Mint In the Box (MIB) rules are the hardest to find now. These are rules that look as they did when the factory shipped them, in the original packaging. Due to long storage (sometimes 30 years), we may get a bit of paper 'foxing' (iron stains from staples or moisture) or box scuffs, but we provide pictures for you to judge the exact condition for yourself. Every year, the number of rules available in this condition steadily decreases, and costs increase, so take advantage of them when they appear.
REMEMBER TO CHECK THE POCKET and CHEAP SECTIONS FOR MORE NEW RULES

We accept VISA/MC or international money order

* We accept Visa/MC or Int'l MO for orders. If we have your valid data on file, you can just click on the ORDER email link to place an order and indicate your approval to bill, and we will do the rest. If this is the first time you have dealt with us, you can phone (250) 769-1834 or FAX (250) 769-4106 the billing info, or send it by the email link, as you prefer.

The CATALOG will appear below shortly!
(takes a few seconds to load, heavily illustrated)



CATALOG: JUST SCROLL DOWN TO SEE EVERYTHING !down
SLIDE RULE
INFO / SCALES
QUANTITY
PRICE EA.
Teledyne Post
POST 1460
T/P 44CA60L
Versalog II

Log Log Duplex Pocket Rule

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USA
Japan
Teledyne Post 44CA-60J POST
CLICK HERE to visit the Teledyne POST Archive

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Just in, won't last long.....
12"/10"Pocket Slide Rule
New, boxed bamboo, Log Log Duplex rule, metal framed glass cursor. This is Hemmi and POST's famous Versalog II full-sized duplex rule, the companion to the pocket sized 1461. This has blue and red scale markings with the GREEN COS scale added A scale, and adjustable metal end braces. The NEW set includes the embossed synthetic case, complete with belt loop, box and softcover manual.

A powerful but duplex rule, this has 8 Log Log scales, split high resolution square root scales (R1/R2) plus A scale, folded and trig scales. A very attractive and hard to find rule, this style is always in high demand, but is hard to locate in new condition.

Made by Hemmi in Japan, this is a very late-production set with Teledyne logo and number on both the box and rule.


(24 Scales)
Front - L, LL/1, LL/2, LL/3, [ T, SecT/SRT, Cos/S, C, ] D, LL3, LL2, LL1
Back - LL0, K, A, DF, [ CF, CIF, CI, C, ] D, R1, R2, LL0
NEW
SORRY, SOLD

Includes:
Rule
Belt Loop
Case
Box
Manual

$325 Ea.

Teledyne
44CA-60J
POST 1460 Versalog II
Like this rule?

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SLIDE RULE
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PRICE EA.

Ricoh
105P
Bamboo Trig Slide Rule Set


Ricoh 105P Set, CLICK for bigger PIC!
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Made in Japan
Ricoh 105P Close up, CLICK for bigger pic!
Ricoh 105P Close up, CLICK for bigger pic!

10"/12" Bamboo Trig Slide Rule Set
NEW, LATE MODEL, EXCELLENT CONDITION.

Ricoh was one of Japan's top slide rule makers, and this model (#105, P means Plastic Case) is a beautiful bamboo body rule with white faces and engraved and filled scales in black and red with over-range extensions, and a framed glass cursor. It's a complete set with blue/white plastic 2-part case, factory manual in English, and the factory bagged rule with box.

This Mannheim style rule has a good front scale set, trig scales on the back of the slide (S, ST and T), constant table on the rear of the body, top sloped cm ruler, and bottom edge inch ruler. Literally something useful on every surface! A great rule for everyday desk use, very similar to the popular POST 1452W. The pic shows the actual box condition and set for sale. An outstanding set for a gift.


(10 Scales + 2 Rulers)
Front - cm/ K, A, [ B, CI, C, ] D, L | inch
Back - , [ S, ST, S] [Constant Table]
NEW
4 Sets


Includes:


Box
Manual
2-Part Case


$95


Richoh 105P
Like this set?

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SLIDE RULE
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NEW

K+E 68-1215
Log Log Duplex Decitrig Set


Boxed 68-1215 Set, CLICK for bigger PIC!
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Inside 68-1210 Boxed Set, CLICK for bigger PIC!
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USA

68 1215 Log Log Duplex Decitrig Set
Rule Type: 68-1210, SET No. is 68-1215
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10"/12" Log Log Duplex Decitrig Slide Rule Set
NEW, VERY LATE MODEL, DISPLAY BOXED SET, OUTSTANDING CONDITION.

We very rarely see any NEW boxed K+E rule sets, they always seem to get used rather than stored. This is a rare opportunity to get the premiere late version mahogany body rule from K+E (68-1210), in the complete set (68-1215), with orange sewn leather case, softcover manual, care booklet and fitted display box.

This rule has the inlaid wood edges (my favorite), unbreakable improved cursor and bright white laminate with red and black scales. A very attractive rule, and complete in a factory boxed set. This rule has both the DI and SRT scales, as well as folded and Log Log scales. The pic shows the actual box condition, and all the parts offered for sale. An outstanding set for a gift.

(21 Scales)
Front - LL02, LL03, DF, [ CF, CIF, CI, C, ] D, LL3, LL2
Back - LL01, L, K, A, [ B, T, SRT, S, ] D, DI, LL1
NEW
SORRY, SOLD


Includes:


Box
Manual
Care Booklet
Sewn Leather Case


$295


K+E 68-1215
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NEW
K+E 68-1251
Jet-Log Set


Boxed 68-1251 Set, CLICK for bigger PIC!
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Inside 68-1251 Boxed Set, CLICK for bigger PIC!
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USA

68-1251 Jet Log Set
Rule Type: 68-1251, SET No. is 68-1251
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10"/12" Jet-Log Slide Rule Set
NEW, VERY LATE MODEL, DISPLAY BOXED SET, OUTSTANDING CONDITION.

We very rarely see any NEW boxed K+E rule sets, they always seem to get used rather than stored. This is a rare opportunity to get the premiere late version Ivorite body rule from K+E (68-1251), in the complete set with orange sewn leather case, softcover manual, care booklet and fitted display box. This is the plastic body version of the famous 68-1210/4081-3 Log Log Duplex Decitrig model.

This rule has the unbreakable improved cursor and bright white body with red and black filled engraved scales. A very attractive rule, and complete in a factory boxed set. This rule has both the DI and SRT scales, as well as folded and Log Log scales. The pic shows the actual box condition, and all the parts offered for sale. This is the first new boxed K+E set we have had for a year. An outstanding set for a gift.

(21 Scales)
Front - LL02, LL03, DF, [ CF, CIF, CI, C, ] D, LL3, LL2
Back - LL01, L, K, A, [ B, T, SRT, S, ] D, DI, LL1
NEW
SORRY, SOLD


Includes:


Box
Manual
Care Booklet
Sewn Leather Case


$295


K+E 68-1251
Jet-Log
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NEW

K+E 68-1617
Polyphase Slide Rule Set


Boxed 68-1617 Set, CLICK for bigger PIC!
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USA

68 1617 Polyphase Slide Rule
Rule Type: 68-1617, SET No. is 68-1617
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10"/12" Polyphase Slide Rule Set
NEW, VERY LATE MODEL, DISPLAY BOXED SET, OUTSTANDING CONDITION.

This is a rare opportunity to get the complete late version mahogany body Polyphase slide rule from K+E (68-1617), in the complete set (68-1617), with sewn leather case, softcover manual, care booklet and fitted display box.

This simplex rule has trig scales on the slide reverse, and an engraved Ivorite back with data, to replace the earlier paper data sheet, plus unbreakable improved cursor and bright white laminate with red and black scales. An ideal rule to leave out on a desk, it has both inch and cm edge rulers. A very attractive simpler rule, and complete in a factory boxed set. The pic shows the actual box condition, and all the parts offered for sale. An outstanding set for a gift.

(9 Scales + 2 Rulers + Data)
Front - inch/ A, [ B, CI, C, ] D, K \cm
Back - [ S, L, T, ] + Body Data
NEW
Just 1


Includes:


Box
Manual
Care Booklet
Leather Case


$195


K+E 68-1617
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SLIDE RULE
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Nestler
0370 Electro


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Germany
Nestler

10" Electro Slide Rule
One of Nestler's specialized simplex rules, BRAND NEW, with black leather case and factory box. The rule has an unusual construction, with 2 SIDED cursor operation, and a 4 line glass front cursor. The slide reverse has 3 trig scales, the face has specialized electrical engineering scales, and the bottom side has trig scales. The rule can do many material/voltage loss calculations, and has many special gauge points for quick unit conversion and electrical formula entry. The rule has over-range extensions of basic scales, a rear table of constants and conversions, and an edge cm ruler.
A wonderful older style wood body rule, with an interesting cursor design. These sets are in mint condition. Includes the original 32 page factory manual. (English).


(12 Scales plus one ruler)
Top Edge - cm
Front - V, A, [ B, CI, C, ] D, U
Reverse - Constants [ Sin, Sin-Tan, Tan ]
Bottom Edge - LL, K
Last Set


Includes:


Leather Case

Manual

Rule

Box



SALE, Save $20
Save $20
$149


Nestler 0370 Electro
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SLIDE RULE
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An elegant business/commerce rule from Faber-Castell!
Faber-Castell
Faber-Castell
Disponent
111/22

FC 111/22, CLICK for bigger PIC!
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Germany
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Slide Reverse Body back is blank.

12"/10" precision Slide Rule
BRAND NEW, mint condition! complete with plastic clear/green display case and factory manual in English!

Commerce/Business rules are not very common in North America, but were widely used in Europe. It is set up to do Mark-up/Discount, simple and compound interest, currency and common unit conversions and all the normal math functions, plus log log scales on the slide reverse. Versatile plastic body rule with 2 line cursor, accessory ruler/data strip, and a 27cm ruler along the top edge. The body back is blank. The rule is self documenting on right hand side for all scales. A very good quality rule with black red and green scale markings. Mint condition sets, and this business style rule doesn't show up very often, especially with the unique currency scales and marks. RH


(11 Scales + Marks, 1 Ruler)
Front - cm/ Units, Mark-up/Discount, DF, [ CF, CI, C, ] D, L Sh/D, Pounds
Back - [ LL1, LL2, C ]

Back in stock!
10 Sets
Includes:
Display Case
Ruler
English Manual


$129


FC 111/22
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Beautiful Projection Rule !

Steadtler
Staedtler
544 LLAV
Log Log Projection Rule

With blue linen display box.

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Made In Germany
CLICK for bigger PIC!BRAND NEW, excellent condition Staedtler 544 LL AV Projection Rule Set display cased projection rule set with English/German factory operating card. This set looks virtually untouched (much better than the pics can easily show) with the exception of some crumbling 35+ year old tape on the rear side (whose function is unclear to me, but probably to elevate the scale back to prevent scratches, and should be cleaned off and replaced), and has been in storage in the UK since it was originally made in Germany. I had never seen a projection rule from Staedler before these came along, this is a very uncommon set. You will be very pleased with this set, it is very sophisticated, truly beautiful with center accent green slide tint and is a delight to use. This is the equivalent of the 544LL Log Log Rule, converted to a duplex overhead projection system including all the cursor lines and colored slide! The rule has log log scales, extended trig scales, and is self documenting on right hand side for all scales. It also includes a second enlarged projection scale/cursor section to allow detailed explanation of scale resolution. We can provide a similar operating manual reprint from Staedtler, but there is none included with the set. (RH)
544 LLAV
(14 scales, 6 cursor lines)
Front - L, K, A, [ B, CI, C, ] D, S (Cos), ST, T (Cot)
Back - L, K, A, [ S, LL1, LL2, LL3, ] D, S (Cos), ST, T (Cot)

Steadtler Box
Wonderful Projection set!

Only 2!

Includes:


Operating Cards
Projection Rule
Linen Display Case

NEW
Steadtler 544 LLAV Set
Like this set?


$495

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SLIDE RULE
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PRICE EA.
Staedtler-Mars 544 A Slide Rule

Staedtler-Mars
Staedtler-Mars
544A
Staedtler 544A, CLICK for bigger PIC!
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Germany

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12"/10" 544 A Simplex Slide Rule
BRAND NEW, NIB, beautiful rule, complete with 2 part plastic case and factory box. The 544A features the trademark S/M blue slide and body braces, multi-line (5 line) cursor, plus two color (red/black) scale markings, and folded scales. The rule is self documenting on the right hand side for all scales. Staedtler-Mars rules are highly requested but quite uncommon in North America, and are very well made designs. Attractive blue slide and body braces, complement the bright blue and white two part plastic case. The folded scales are especially useful for mark-up/discount calculations, and a center index is well marked for this. The 'invisible brace' style with braces on the back gives the rule a very clean European look from the front. Blank on the reverse side. We have included reprints of the S/M consolidated rule instructions because these came factory packed with no instructions. These were still sealed in a factory bulk pack, so everything is in mint condition.

(8 Scales, 5 Cursor Lines)
Front - K, DF, [ CF, CIF, CI, C, ] D, A
Back - Blank
9 Sets


Includes:


Case
Box
Reprint Instructions



$95

Mars 544A
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Exceptional Computing Power !

Faber-Castell
Faber-Castell
2/83N
Novo-Duplex Rule

With embossed green fiberboard display case as shown

FC 2/83N, CLICK for bigger PIC!
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FC 2/83N, CLICK for bigger PIC!
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Made In Germany
BRAND NEW, MINT condition 2/83N Novo-Duplex factory cased rule sets with factory German manuals and accessory rulers. These sets include the rule, green fiberboard case, accessory ruler and german (factory) and english (reprint) language manuals.

These sets look virtually untouched (much better than the pics can easily show), and have been in storage since they were orignally made in Germany. You will be very pleased with these, they are mint condition by any standard.

I really like this rule, and these sets are exceptional, a wonderful gift for that rule fanatic you know, or for your kids as a real keepsake treasure. The case has a front FC logo, and stores the manual, and accessory ruler inside. This rule is variously marked Novo-Biplex (mainly for sale outside Germany), and Novo-Duplex, these sets all say Novo-Duplex. Everything has been inspected, cleaned and polished, for the best possible appearance. We paid a very high price to get these sets, so they are expensive, but you will not find them in better condition anywhere.

*14"/10" Novo-Duplex Log Log Slide Rule
One of the nicest plastic body rules ever made, with anodized adjustable aluminum end braces, duplex 5/4-line cursor, two color (red/black) scale markings, and trademark mint green stripe on primary scales (both sides), plus additional blue stripes on the A and B scales, and massive 2 1/4" wide body. This rule also has expanded W square root scales, for both the square root of x and 10x, 8 log log scales, and raised rubber bumpers to prevent cursor scraping, and to give the rule grip on a desktop. The rule also has finger-grip areas on the slide for better movement. Body is fully alignable at the aluminum end-pieces. The cursor pops off (note the recess on the side bars) for easy cleaning, while retaining its alignment, a very handy feature!

Rule is self documenting on right hand side for all scales. Has pythagorean scale (P), expanded square scales, folded scales and scale over-ranges. These late sets were put together with the very last remaining parts at Faber-Castell, and stored in their warehouse.


(30 scales, 11 cursor lines)
Front - T1, T2, K, A, DF, [ CF, B, CIF, CI, C, ] D, DI, S, ST, P
Back - LL03, LL02, LL01, LL00, W2 [ W2', CI, L, C, W1', ] W1, LL0, LL1, LL2, LL3
Wonderful Mint sets!

Just 1

Includes:


English Reprint Manual

Factory German Manual
German Ruler
Slide Rule
Green Case

NEW
FC 2/83N Green Cased Sets
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SUN
Hemmi/Sun
80K
Electrical
Engineering
10" Simplex Rule

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CLICK to see edge scale
CLICK to see edge scale and cursor


NEW

Japan

12" / 10" Electrical Engineering Slide Rule

CLASSIC MODEL, . NEW, high end bamboo rule and Hemmi 2-part embossed hardboard case COMPLETE WITH ORIGINAL Factory Manual.

Has dynamo efficiency and voltage scales, log log, sine and tangent scales with edge K scale (unique side cursor arrangement) and a cm ruler on the top edge (a variation of this rule has an inch scale). primary scales (4) have over-range extensions, plus the body has two fixed cursors on the body reverse.

Note that rule has an uncommon 3 line framed glass cursor plus a wrap around side edge cursor. Excellent condition of all items.

(13 Scales and one ruler)

Front - cm/ Dynamo, volt, A, [ B, CI, C, ] D, LL3, LL2
Back - Factors and settings guide [ S, L, T ]
Edge - K

Manual
Just 1


Includes:



2-Part Hardboard Case
Manual



$125


Hemmi 80K
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Faber-Castell
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Rule back face
Rule Back Face
FC 1/54 CLICK for bigger PIC!
Click here for Side Pic

1/54
System Darmstadt

Made In Germany
FC Classic Sets, Just Arrived!
12"/10" Full Size System Darmstadt Mannheim Slide Rule.
Faber's advanced Mannheim rule, widely used in Europe, and a real classic. Includes the hard to find factory English manual and clear/green compact display case! This rule has a visible wood core, with white celluloid faces, black and red filled and engraved scales, plus 2 side cursors and scale sets. This is a very unusual design, with a complex 3-sided, 7 line cursor, and is the final (late) version of this rule.

Has the Rietz over-range scale extensions, plus the Pythagorean scale (P), side log scale on top, and side sine and tangent scales at the bottom. Slide reverse has 3 log log scales (ex). Scales are self documenting on the right side. Celluloid 3 line cursor.

This rule has has a blank back, with 2 rear cursor windows for the 3 log log scales on the slide reverse, and bevelled side cm ruler. Enjoyable to use, and lovely to look at, every surface has been used to do something useful. Older models had formulas and factors on the back, this late rule has a complete accessory ruler included (cm and inch) with the factor data on it. Pic is one of the actual rules offered. This is a real classic rule treasure, don't miss your chance to get a new MINT set.

(13 Scales and cm ruler) (RH)
Front - K, A, [ B, CI, C, ] D, P
Back - 3 (ex) scales.
Top Side - cm ruler, L
Bottom Side - S, T
14 Sets

Includes:

Display Case
Ruler
Manual


Display Cased
Set

Sale, Save $10!
Save $10!
$159

FC 1/54 Display Cased Set
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Faber-Castell
Faber-Castell
1/98 Elektro

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FC 1/98 K Edge Scale, CLICK for bigger PIC!
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Made In Germany
Classic FC rules, with unusual edge and in-body scales!

NEW 1/98 Elektro display cased rule sets with factory English manuals. These sets includes the rule, clear/green case, plus a reprint of the English manual (which also covers several related types). These sets are new and unused, and are in MINT condition (the rules are still sealed inside factory plastic bags), great examples of FC's Simplex/Mannheim rule designs. Includes the special motor/dynamo scales.
1/98 10" Elektro Rule
A beautiful Electrical rule with a large 5-line front and edge cursor, two color (red/black) scale markings, and over-range scale extensions, with all scales self documenting on the right hand side. Has LL2/LL3 log log scales on the front, special electrical gauge marks, edge metric ruler (cm) a rare bottom edge K (cube) scale, and 3 slide reverse Trig scales, PLUS dynamo/volt scales inside the rule body itself. This has all the special construction features classic FC wood body rules were famous for. A very powerful and well made simplex rule with many unusual features! (RH)

(13 scales, 6 cursor lines, 1 ruler)
Front - cm / LL2, A, [ B, CI, C, ] D, LL3
Edge - K
Inside - Dynamo, Volt
Back - [ S, L, T ]
18 Sets
Includes:
English Manual
Rule
Plastic Display Case


Display Cased
Set

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$159
FC 1/98 Display Cased Set
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Nestler
Elemath RS Duplex


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Germany
More sets just arrived!
Nestler

10" Elemath RS Duplex Slide Rule
Nestler's late production style duplex rule. BRAND NEW rule, with 2 part plastic case. Has normal and folded basic scales (at 3), expanded trig scales, and a 6 line cursor. Has green body supports, and a pale green stripe on the entire slide (both sides), and black and red filled/ engraved scales.
An excellent full sized Trig rule, great for high school students. All scales are self documenting on the right hand side. German manual sheets included.
We will include a reprint of the full 16 page Nestler Darmstadt/Rietz Manual (English).


(17 Scales)
Front - K, A, [ B, CI, C, ] D, L
Reverse - T1, T2, DF, [ CF, CIF, CI, C, ] D, S, ST
4 Sets

Includes:
Plastic Case

Rule

Manual Reprint




$115


Nestler Elemath RS Duplex
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NEWLOGAREX
Logarex Logo
27403-III
System Darmstadt

Logarex 27403-III, CLICK for bigger PIC!
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Logarex 27403-III, CLICK for bigger PIC!
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Nade in Czechoslovakia
Uncommon Full Sized Logarex Rules
Just Arrived from Europe!

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Inch ruler and conversion factors on back

10" Darmstadt Slide Rule
VERY LATE MODEL, made in Czechoslovakia. Powerful, brand new full sized rule with front and back cm/inch edge rulers, smooth black scales, 3 log log scales on the slide reverse, pythagorean and trig scales, and 4 line cursor, and dual reverse side body cursors. Unusually marked, this rule contains ONLY scale equivalents, no arbitrary letters. Has a soft black padded leatherette case with top flap, and the name of the UK distributor for Logarex (Hellerman) embossed on one side. A very powerful and well-designed rule, but uncommon in North America. Like Pickett rules, this is lithographically made, not engraved, and has a shiny top coating for protection of the printed scales. A very nice desk rule to use for many purposes, thanks to the dual rulers. The 4 page Hellerman basic instructions are included.


(14 Scales, 4 cursor lines, 2 Rulers)
FRONT- cm/ log, sq rt(1-X2), X3, X2, [ X2, 1/X, X, ] X, sin, tg, s-t
BACK- inch/ [ e0.01X, e0.1X, eX ] Factors on the body area
Last 1


Includes:


Case
Hellerman Reprint

$129

NEW

LOGAREX 27403-III
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Aristo
Aristo
Scholar
0903

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NEW

Germany

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12"/10" Scholar Slide Rule
Like NEW, classroom set of rules from germany that appears never to have been used. Some still have the inspection slip inside. Set has the two part white and red plastic case, all in excellent condition. The rule has a 4 line slightly magnifying cursor, plus two color (red/black) scale markings with yellow accent coloring on the rule body stators. Self-documenting on the right hand side. A very functional and attractive trig rule set, with a bonus BI scale, all with excellent documentation. The back is blank. Includes box, 2-part case, original manual (German) and expanded English reprint.


(11 Scales)
Front - L, K, A, [ B, BI, CI, C, ] D, S, ST, T
Back - BLANK

3 Sets

Includes:


Case
Box
2 Manuals

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$49

Aristo 0903 Set
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