USD $55
These rules are in new/excellent condition, and are perfect for beginners. Available with either a transparent plastic case, or the two-part grey case, both include the original instruction manual.
This rule features all-black scales that are self-documenting on the right side, and instructions printed on the back, which is perfect for those just learning to use a slide rule.
(12 scales, 3 cursor lines, metric ruler)
Front – A, [B, C] D
Back – Instructions
Stock: 5
USD $45
NIB, mint condition student/beginner rule with the original box, case, and manual (English). Scales are self-documenting on the right side of the rule. Features a metric ruler on the upper edge, and operating instructions on the reverse side of the rule.
(4 scales, 3 cursor lines, 1 ruler (inches))
Front – A, [B, C] D
Back – Instructions
Stock: 1
USD $65
New condition rule and case pocket slide rule, featuring a metric ruler on the upper edge. An excellent beginner rule with four cursor lines, 10 scales, and is self-documenting on the right side. Includes the original instructions in Spanish.
(10 scales, 4 cursor lines, metric ruler)
Front – K, A, [B, CI, C] D, L
Back – Blank [S, ST, T]
Stock: 2
USD $85
12″/10″ Full Size Slide Rule.
A beginner rule from Faber, featuring 5 cursor lines, a metric ruler on the upper edge, and a reversible slide with additional scales. Unlike the new/mint examples of this rule available, these rules come with a variety of different cases in non-mint condition, and do not necessarily come with complete manuals, or all standard FC features (e.g. do not uniformly have green scale contrast indicators, and black/red engraved scale markings).
(10 scales, 5 cursor lines, metric ruler)
Front – K, A,[B, CI, C] D, L
Back – [S, ST, T] Data tables
Stock: 3
USD $59
12″/10″ Full Size Slide Rule.
A beginner rule from Faber, featuring 5 cursor lines, an imperial ruler on the upper edge, and a reversible slide with additional scales. Comes with the original two-piece plastic case, and English instruction manual. Features the famous FC green scale contrast indicators, and black/red engraved scale markings. Moderate scale bleeding.
(10 scales, 5 cursor lines, imperial ruler)
Front – LL2, A, [B, CI, C] D, LL3
Back – [S, L, T]
Stock: 1
USD $65
12″/10″ Full Size Slide Rule
This is a very early, wood body, rule from Faber Castell prior to the advent of widely standardised scale markings. It features an imperial ruler along the upper edge, and a metric ruler on the lower edge, along with data charts and instructions on the revers side. Includes the original carton, two-piece case, and an English language instruction manual.
(8 Scales, 2 rulers)
Front – 5 scales
Back – [sin, lg, tg]
Stock: 1
USD $85
12″/10″ Full Size Novo-Duplex Slide Rule.
An advanced duplex log log rule, widely used in Europe, but seldom seen in North America. This rule has a plastic body, black and red filled and engraved scales, plus green accent stripes. This is a powerful design, with the Rietz over-range scale extensions, Pythagorean scale (P), and 6 log log scales. Scales are all self-documenting on the right hand side, and the rule has a 3/5 line cursor.
(24 Scales, 3/5 cursor lines)
Front – K, T1, T2, DF, [CF, CIF, CI, C] D, S, ST, P
Back – LL03, LL02, LL01, A, [B, L, CI, C] D, LL1, LL2, LL3
Stock: 1
USD $65
2″/10″ precision Slide Rule
A versatile and comprehensive beginner/student duplex rule featuring a two-part plastic case, pink color accent stripes on primary scales, and black/red scale marking. The rule is self documenting on right hand side for all scales. A very good quality rule, this example has visible scale bleeding, and marking on the body, but it still verr usable.
(21 Scales, 3 cursor lines)
Front – L, K, A, [B, CI, C] D, LL1, LL2, LL3
Back – T1, T2, DF, [CF, CIF, CI, C] D, S, ST, P
Stock: 1
USD $49
12″/10″ Full Size Slide Rule.
A beginner rule from Faber, featuring 5 cursor lines, a metric ruler on the upper edge, and a reversible slide with additional scales. Comes with the original clear plastic slip case, and English instruction manual.
(10 scales, 5 cursor lines, metric ruler)
Front – K, A, [B, CI, C] D, L
Back – [S, ST, T]
Stock: 1
USD $69
12″/10″ Full Size Slide Rule.
One of Faber Castell’s student/beginner rules for those learning to use a slide rule, but requiring robust functionality. Comes with the original clear plastic slip case, and English instruction manual.
This rule features graphic instructions on the reverse side on how to use the rule.
(8 scales, 5 cursor lines, imperial ruler)
Front – A, DF, [CF, CIF, CI, C] D, K
Back – Instructions
Stock: 1
USD $85
The Model 99 is a more basic student rule designed for beginners and more non-exhaustive use that doesn’t require advanced trig scales. Features engraved and filled black/red scales, an all plastic body, and four cursor lines.
(10 Scales, 4 Cursor Lines, 2 rulers)
Front – K, A, [B, CI, C] D, L, imperial ruler
Back – [S, ST, T], metric ruler
Stock: 2
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
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
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
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
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
USD $33
12″ / 10″ Simplex Slide Rule
This is something of a franken-rule, featuring the body from a Pickett 120-T, and the slide from a Pickett 120-ES, giving the rule improved readability. Embossed plastic construction, with black scales. A good student or starter rule, includes the original fibreboard case.
(9 Scales)
Front – K, A, [ B, S, T, CI, C ] D, L
Stock: 1
USD $44
12″/10″ Scholar Slide Rule
NEW factory boxed sets, with black leatherette case. This rule is a step up from the 120 model, featuring additional scales and conversion factors on the back of the rule. Perfect for students. Rules are in new/mint condition, boxes show signs of wear.
(12 Scales)
Front – K, A, [ B, CI, C, ] D, L
Back – [ S, ST, T, C ] D
Stock: 4
USD $39
12″ / 10″ Simplex Slide Rule
New in its original box, and includes black leatherette case, and instructions. Embossed white plastic construction, with black scales. A good student or starter rule.
(9 Scales)
Front – K, A, [ B, S, T, CI, C ] D, L
Stock: 1
USD $49
12″/10″ Scholar Slide Rule
NEW factory boxed sets, with 2 part plastic case, 100 Year Anniversary boxes, and even the inspection slip inside. The rule has a 4 line slightly magnifying cursor, plus two color (red/black) scale markings and scales are self-documenting on the right hand side. A very functional and attractive trig rule set, with a bonus top edge cm ruler. The back is blank, but the slide reverse has S, ST and T trig scales.. Includes box, 2-part case, and basic English reprint, because manuals were not included.
(10 Scales + cm Ruler)
Front – cm/ A, [ B, CI, C, ] D, L, K
Back – [ S, ST, T ]
Stock: 6
USD $33
2″ / 10″ Simplex Slide Rule
Comes with original black leatherette case. Embossed white plastic construction (“T” for traditional body), black scales. A good student or starter rule. These rules are in near new condition.
(9 Scales)
Front – K, A, [ B, S, T, CI, C ] D, L
Stock: 8
USD $33
12″ / 10″ Simplex Slide Rule
In good condition with minor marking, comes with original leatherette case. Embossed yellow (ES eye-saver) plastic construction, black scales. A very useful student rule.
(9 Scales)
Front – K, A, [ B, S, T, CI, C ] D, L
Stock: 2
USD $33
12″ / 10″ Simplex Slide Rule
Comes with original brown leatherette case. Embossed white plastic construction, black scales, and grey plastic end braces. A good student or starter rule. This is a slightly slimmer version of the Microline 120 rule.
(9 Scales)
Front – K, A, [ B, T, S, CI, C ] D, L
Stock: 1
USD $44
12″ / 10″ Microline Simplex Trig Slide Rule w/Conversion Data
New bagged sets, with leatherette case, and factory instruction sheet. Embossed white plastic construction, black scales. A very useful student rule with conversion factors on the reverse side. These were shrink-wrapped hanging cards, some of these have been re-bagged due to failure in the original blisterpack plastic.
(9 Scales)
Front – K, A, [ B, S, T, CI, C ] D, L
Back – Conversion Factors
Stock: 5
USD $39
12″ / 10″ Simplex Slide Rule
Comes with original instruction sheet and leatherette case in a blister pack. Embossed white plastic construction, black scales. A very useful student rule, and an ideal first slide rule gift! These are MINT condition, perfect. You can give this to very young kids, as it can be easily washed in a sink with a bit of dish detergent if it gets covered in PB+J.
(9 Scales)
Front – K, A, [ B, S, T, CI, C ] D, L
Stock: 2
USD $80
12″/10″ Full Size Simplex Math Slide Rule
This rule exists in two formats, and later ones came without the special rear scales, and just a trig manual. An excellent student rule with the unusual ability to ADD and SUBTRACT, and do 20 decade calculations.
(10 Scales)
Front – A, [ B, CI, C, ] D, L
Back – X, [ Y, C* ] D*
Stock: 1
USD $86
12″/10″ Full Size Simplex Math Slide Rule
This rule exists in two formats, and later ones came without the special rear scales, and just a trig manual. An excellent student rule with the unusual ability to ADD and SUBTRACT, and do 20 decade calculations.
(10 Scales)
Front – A, [ B, CI, C, ] D, L
Back – X, [ Y, C* ] D*
Stock: 1
USD $95
12″/10″ Full Size Simplex Math Slide Rule, Boxed Set complete with box, case, manual, and warranty card!
ES (Eye-Saver) Yellow aluminum construction. Very high quality, American Made, Pickett rule. This rule exists in two formats, and later ones came without the special rear scales, and just a trig manual. An excellent student rule with the unusual ability to ADD and SUBTRACT, and do 20 decade calculations. Boxes have carton creases, storage scuffs, tears and marks. Can ADD, SUBTRACT and do 20 decade Multiplication/Division
(10 Scales)
Front – A, [ B, CI, C, ] D, L
Back – X, [ Y, C* ] D*
Stock: 3
USD $49
12″/10″ Full Size Slide Rule in updated body format
K+E’s stylish green and white student rule styled to look like a high-end K+E Deci-lon. Engraved scales for ruggedness, and includes vinyl slip case and English factory manual.
These are excellent condition, complete with everything, we pull all of them from the slip cases and clean any release agent off the rule (from the vinyl case). The back of the rule is blank. All have original manuals. The plastic sleeve has the name of the South American distributor stamped on these. These rules have some age discoloration.
(9 Scales)
Front – K, A, [ B, S, CI, T, C ] D, L
Stock: 5
USD $55
12″/10″ Full Size Slide Rule in updated body format
K+E’s stylish green and white student rule styled to look like a high-end K+E Deci-lon. Engraved scales for ruggedness, and includes vinyl slip case and english factory manual.
These are excellent condition, complete with everything, we pull all of them from the slip cases and clean any release agent off the rule (from the vinyl case). The back of the rule is blank. All have original manuals. The plastic sleeve has the name of the South American distributor stamped on these.
(9 Scales)
Front – K, A, [ B, S, CI, T, C ] D, L
Stock: 18
USD $44
2″ / 10″ Microline Simplex Trig Slide Rule w/Conversion Data
In its original “5 Moon Landings” box, and leatherette case. Embossed white plastic construction, black scales. A very useful student rule with conversion factors on the reverse side.
(9 Scales)
Front – K, A, [ B, S, T, CI, C ] D, L
Back – Conversion Factors
Stock: 1
USD $65
An excellent student and beginner simplex/Manheim rule, featuring Aristo’s yellow contrast scales, and and black and red scale markings. Comes with case, rule, and manual. Rules are in new condition.
(8 Scales, 4 cursor lines)
Front – DF, [CF, CIF, CI, C], D, A, K
Back – Blank
Stock: 6
USD $85
A later model Castell rule produced for Feinmessinstitut Klawun, Hannover. Features yellow contrast scales, and red/black scale markings. A good engineer and student rule, at home working on the desktop. Includes plastic case, rule is in fair condition with some discoloration and fading.
(10 Scales, 5 cursor lines)
Front – K, A, [B, CI, C], D, L, Ruler (cm)
Back – [S, ST, T]
Stock: 1
USD $75
An excellent student and beginner simplex/Manheim rule, featuring Aristo’s yellow contrast scales, and and black and red scale markings. Comes in the original factory box still in excellent condition, case, rule, manual, and warranty card. new in box rule.
(8 Scales, 4 cursor lines)
Front – DF, [CF, CIF, CI, C], D, A, K
Back – Blank
Stock: 1
USD $75
The Acumath 500 is a budget friendly, but still fairly capable rule, designed for students and those learning to use a slide rule. White plastic body with metal end braces, and the original plastic carry case.
(9 Scales)
Front – S, K, A, [B, CI, C] D, L, T
Back – Conversion factors
Stock: 1
USD $75
12″/10″ Full Size Simplex Math Slide Rule
This rule exists in two formats, and later ones came without the special rear scales, and just a trig manual. An excellent student rule with the unusual ability to ADD and SUBTRACT, and do 20 decade calculations.
(10 Scales)
Front – A, [ B, CI, C, ] D, L
Back – X, [ Y, C* ] D*
Stock: 1
USD $69
Pickett’s Best Self-Teaching Rule!
12″/10″ Full Size Simplex Trig Slide Rule, T (traditional) white construction. Very high quality, American Made, Pickett rule – a great instructional rule that never loses its manual (it’s imprinted on the back surface!) at a great price. An excellent student rule with good trig capability.
Front – K, A, [ B, T, S, CI, C, ] D, L
Back – instructions, fractional/decimal equivalents
Stock: 1
USD $49
An entry level rule good for students, single sided with contrasting mint green slide. Rule is new and in original packaging, with user manual.
(9 Scales)
Front -K, S, A, B, CI, C, D, T, L
Back – Blank
Stock: 5
USD $50
Jakar 66 Electro Slide Full Size Simplex Rule (metric ruler on top edge), designed for students, engineers, architects and draughtsmen.
(13 Scales)
Front – K, E, A, B, CI, CI, D, LL3, LL2, L [S, ST, T]
Back – Blank
Stock: 1
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
USD $29
An economical and practical student rule for the beginner slide rule enthusiast! Plastic body, with contrast color slide for easier reading. Comes with a leatherette case.
Scales include:
Front – L, K, A, B, CI, C, D, ST, T, S
Back – Blank
Stock: 2
USD $25
A clear and easy to read student rule, with yellow (taupe?) contrast bands on the rule for easier reading. Includes a leatherette case.
Scales include:
Front – A, DF, CF, CIF, CI, C, D, K
Back – Blank
Stock: 2
USD $29
An economical and practical student rule for the beginner slide rule enthusiast! Plastic body, with contrast color slide for easier reading.
Scales include:
Front – L, A, DF, CF, CI, C, D, ST, T, S
Back – Blank
Stock: 1
USD $45
This may be a more basic rule for students, but it still has a variety of very useful features. It has a metric ruler on the upper edge of the rule, high contrast green scale accents, and black and red scales.
Scales include:
Front – K, A, B, L, CI, C, D, S, ST, T1, T2
Back – blank
Stock: 3
USD $69
ES (Eye-Saver) Yellow aluminum construction, high-quality American made, Pickett rule. An excellent student rule with good trig capability, that never loses its instruction manual (it’s printed on the back).
Scales include:
Front – K, A, [ B, T, S, CI, C, ] D, L
Back – instructions, fractional/decimal equivalents
Stock: 13
USD $39
New and in mint condition, made in Czechoslovakia. A great beginner and student rule.
Basic Rietz format rule (has over-range scale extensions for easier operation) with added reference features. It has a black/red self-documenting scale arrangement and pale yellow slide. The slide reverse has trig (S, ST, T) scales, and the back has a treasure trove of useful data and factors. It has a slightly magnifying multi-line simplex cursor design that does area of a circle, plus some other interesting stuff like horsepower conversion. These are beautifully made rules, very well constructed. We will include basic instruction reprints, as these came bulk packed with with no manuals.
Stock: LOTS!
Sphere Research Corporation