To D'Antiques Free Stuff

D'Antiques Slide Rule Gallery

After buying and selling them for more than 16 years, we thought we should make our historical data about slide rules available to others. The following table condenses the data for over 100 models we have acquired by maker and model. Although we think the data are accurate, there may be errors. Because nearly all have been sold, we have no way of correcting the information.

Thanks to Ted Hellmann for correcting our data for 2 of the special models!

We hope the information is of value to our visitors and always solicit input regarding our site content.

THESE ITEMS ARE NOT OFFERED FOR SALE!

 

AC Specialties Arnold's Mortgage Computer
A high-quality anodized aluminum device made specifically to do interest calculations on mortgages. 15 in. long. In original box with instructions.
Acumath Log-Log Decimal Trig 1311
An unusual wooden rule with 10 in. scales. In original leatherette case and a 1946 instruction booklet by Ross Middlemiss.
Acumath 400
10 inch white plastic. Scales S,K,A,B,C1,C,D,L and T on one side, blank on the obverse. In brown leatherette case.
Acumath Mannheim Professional 511
10 in white metal rule. Stator scales: S,K,A,D,L,T on one side. Slide scales B,C CI on one side. Conversion tables on obverse side of rule. In a light brown leather case. This is an unusual item.
Acumath Professional Mannheim Trig 900
10 in. white plastic rule. Stator scales K,A,D,D1 and L on one side; DF and D on obverse. Slide scales B,T,ST and S on one side; C,C1,CF and C1F on the obverse. In brown leatherette case.
Aristo Studio DBGM 868
5 in. white plastic. Stator scales T,ST,DF,D,P and S on one side; LL01,LL02,LL03, A,D,LL3,LL2 and LL1 on obverse. Slide scales B,L,K and C on one side CF,C1F,C1 and C on the obverse. In brown leather case w/pocket clip
Blackman-Hill & Co. Machinist's Slide Rule, The
Yellow, with 2 slides and no cursor (by design), this 7 in. by 2 in. device calculates speed and feed factors on one side and power factors on the other. In brown leather pocket case with instructions.copyright 1932/38.
Compass 505
5 in. white plastic over bamboo. Stator scales A, D and K. Slide scales B, C and C1 on one side S, L and T on the obverse. In correct brown leather case
Concise Circular Caterpillar Advertising 260
In original case with a 36 page instruction booklet. Plastic approx. 4 in. diameter double-sided. One side bears the slogan 'Figure on the complete Caterpillar line'- obviously a complimentary item for the preferred customer.
Concise Circular 28N
3 1/2 in. white plastic. Stator scale D. Slide scales A,K and C. Metric/English conversions on obverse side.
C-Trey
10 inch, White plastic. Stator scales A,D and K . Slide scales B,C1 and C. Equivalents on obverse. Every collection requires the ridiculous to act as foil for the sublime but this one is pushing it. The buyer will be someone who brings stray cats home
Dietzgen Vector Type Log Log N 1725
One of their nicest Microglide models, this one appears to be ivory over mahogany. In a soft black leather case with Dietzgen logo but a tight fit suggests it may not be original for this rule.
Dietzgen Trigonometric Type Log Log N 1731
One of their nicest Microglide models, this one appears to be ivory over mahogany. In a brown leather case with Dietzgen logo.
Dietzgen Decimal Trig Type log log N 1733 1950
A very nice older hardwood rule. 10 in. stator scales LL1,LL01, A, D,D1, and K on one side, LL02,LL03,DF,D,LL3 and LL2 on obverse. Slide scales B,T,ST and S on one side, L,CI,CF,CIF and C on the obverse. In a black leather case with conversion table.
Dietzgen Decimal Trig Log Log N 1734
A high-quality 10 in. rule with white laminate on wood (appears to be ivory over mahogany). With 108 pp Instruction manual, Care and Use and Warranty leaflets. In original box.
Dietzgen Clear Scale N 1739-L
10 in. white/blue plastic. Stator scales T1,T2,DF,D,ST,P and S on one side; L,K, A,D,LL3,LL2 and LL1 on obverse. Slide scales B,C1 and C on one side CF,C1F,C1 and C on the obverse. In original grey plastic case with instructions
Diwa Reitz 601
5 inch white plastic. Made in Denmark. Tech-Eng (Brockton, Mass) advertising on leather case and rule. Stator scales K,A,D and L on one side. Slide scales S,ST,T and C on one side, B,C and CI on obverse. In box with instructions (German and English).
Engineering Instruments 250-V
10 inch, white plastic face wood with scales A,B,C,D,CI,K and S,L and T. In original box with instructions AND metallic blue leatherette case. "You can do it faster with a slide rule" ... I'll let that one slide. :)
Favor, Ruhl & Co. Dual 10-5 SR-108 M-D
5 in. scales. Wood and celluloid overlay with plastic cursor. Stator scales:K,A,D and D1 on one side, D1,D2 and D on obverse. Slide scales:B,S,T and C on one side, L,C1 and C2 on obverse. A relatively crude device, but unusual, useful design
Geo. W. Richardson Direct Reading
An odd one to us, this unit has an aluminum body with 10 in. paper stator and slide scales. Stator-A and D; Slide B and C. Pat'd Jan. 31, 1911 and Mar. 26, 1912. In a box which may, or may not, be original. 'Key' holes are unique.
Gerâtekonstante Ablage?
A very impressive rule measuring 15 in. long by 1 3/4 in. wide. Legends are in German (we think). It appears to calculate Ablage in Winkelsekunden. Back Instructions . In telescoping rigid case.
Gilson Circular 5-in-1 Rule Midget Dietzgen 1797
Graphoplex 692
Made in France. 7 1/4 in. white plastic. Stator scales L, P, A1, A, D, D1 and K on one side; LL01,LL02,LL03, DF,D,LL3,LL2 and LL1 on obverse. Slide scales B,T,S&T and S on one side CF,C1F,C1 and C on the obverse. In brown leather case
GUCO Concrete Estimator 81
5 white plastic device used to estimate concrete volume required for a job based on width, length and depth of concrete desired. Advertises Shamrock in Aquanga, Calif., a concrete supplier.
Henry W. Tomlinson Winslow Concrete Computing Slide RVLE
For reinforced concrete slabs-beams-girders. 5 1/2 in. by 10 1/2 in. hard fiber construction. Patented 1904. In original box with instructions (typewritten!) and a brochure for the Strength computing rule by the same firm. A very unusual item.
Keuffel and Esser K-12 Prep
10 inch, White plastic. Stator scales A,D,L and K . Slide scales B,S,CI,C and T. In green plastic case with manual 'Learning to Use the Slide Rule' specific to this model
Keuffel and Esser Log-Log Duplex Trig 133364
(c) 1947. 5 inch, white plastic. Stator scales: LL01,L,K,A, D,D1 and LL1. on one side, LL02,LL03,DF,D,LL3 and LL2 on obverse. Slide scales: B,T,S and SRT on one side; C,CI,CF and CIF on the obverse. In original green leather case with pocket clip.
Keuffel and Esser Polyphase 4053-3S
10 inch plastic over wood. In original box (excellent) with leather case (mint) and original paperwork, including the 1954 edition of the manual by Breckenridge.
Keuffel and Esser Polyphase 4053-5
20-1/2 in. hardwood rule. Pat Date June 6, 1900 on stator. Pat 8.17.15 on cursor. Scales A and D on one side of stator, conversions on obverse. B,C and C1 on one side of slide, S, L and T on obverse. In original case (cardboard with leatherette covering)
Keuffel and Esser 4058-C
Beginner's rule. 10 inch, wood. Stator scales: A and D. Obverse side has conversion factors. Slide scales: B and C on one side; S, L and T on the obverse. In original black cardboard box with instructions dated 1928
Keuffel and Esser 4058-W
Beginner's rule. 10 inch, wood . Stator scales: A and D. Obverse side has conversion factors. Slide scales: B and C on one side; S and T on the obverse. In original black leatherette case
Keuffel and Esser Polyphase Duplex Decitrig 4071-3S
10 in., ivory and wood. Last Pat No. 2,170,144 on stator. Stator scales: A,K,DI and D. Obverse side DF,D and L. Slide scales: B,T,S and ST on one side; C,CI,CIF and CF on the obverse. In original brown leather case
Keuffel and Esser Log-Log Duplex Trig 4080-3
Hardwood and ivory 10 inch. Stator scales: LL0,LL00,A, D,D1 and K. on one side, L,LL1,DF,D,LL3 and LL2 on obverse. Slide scales: B,T,S and ST on one side; C,CI,CF and CIF on the obverse. In hardwood box with green plush lining. Pat 1,930,852 (1933)
Keuffel and Esser Log Log Duplex Decitrig 4081-3
With magnifying cursor. One of the most unusual sets we have had, this one includes a special leather case to accommodate the large cursor! In original box with instructions. Pat'd 1947.
Keuffel and Esser Log-Log Duplex Decitrig 4081-3
10 in. hardwood rule. Scales: stator LL0,LL00,A,D,DI and K one side, L,LL1,DF,D,LL3 and LL2 on obverse; Slide C,CF,CI and CIF one side, B,T,ST and S on obverse. With original black case. Pat. No. 1,170,144 Pending (1939).
Keuffel and Esser Log Log Duplex Vector 4083-3
Hardwood and ivory 10 inch (c) 1947. Stator scales:Sh1,Sh2,Th,A,D,DI,LL01 and LL1 on one side, LL02,LL01,DF,D,LL3 and LL2 on obverse. Slide scales CF,CIF,CI and C on one side B,T,SRT, S on obverse. In original leather case and box with instruction books.
Keuffel and Esser 4091-3
Hardwood and ivory 10 inch scales. Stator scales: L,LL1,DF,D,LL2 and LL3 on one side, LL0,A,T,S2 and S1 on obverse. Slide scales: B,K and CI on one side; C,CI,CF and CIF on the obverse. In brown leather case marked K&E (may be newer than rule?)
Keuffel and Esser 4092-3
Hardwood and ivory 10 inch. Stator scales: LL0,A,LL1,LL2 and LL3 on one side, K,DF,D and L on obverse. Slide scales: B,T,S and C on one side; C,CI,CF and CIF on the obverse. In brown leather case marked 4092-3S.
Keuffel and Esser 4095-3
Patent No. 1,930,852. Hardwood and ivory with 10 in. scales. Attractive due partly to its simplicity. Stator scales D and DF on one side, D on the obverse. Slide scales C and CF on one side, CI on the obverse. Includes original case (poor).
Keuffel and Esser Doric 4168
5 in. white plastic rule. Stator scales: DF,D,L on one side K,A,D and T on obverse. Slide scales B,S,ST on one side C,CI and CF on obverse. In original green leather case w/pocket clip.
Keuffel and Esser Log-Log Duplex Decitrig 4181-1
5 in.scales. White Ivorite (plastic) (c) 1947. In brown leather case w/pocket clip. Stator scales LL01,K,A,L,DI,LL1 and D on one side, LLO2,LLO3,LL2,LL3,DF and D on obverse. Slide scales C,CI,CF and CIF on one side, S,B,SRT and T on obverse.
Keuffel and Esser Log-Log Duplex Decitrig 4181-1C
5 in. white Ivorite (plastic) (c) 1947. In green leather case w/pocket clip. Stator scales LL01,K,A,L,D,LL1 and D on one side, LLO2,LLO3,LL2,LL3,DF and D on obverse. Slide scales C,CI,CF and CIF on one side, S,B,ST and T on obverse.
Keuffel and Esser Log Log Duplex Decitrig 4181-3
10 in. white Ivorite (plastic) (c) 1947. Stator scales LL01,K,A,L,D,LL1 and D on one side, LLO2,LLO3,LL2,LL3,DF and D on obverse. Slide scales C,CI,CF and CIF on one side, S,B,ST and T on obverse. In original box with black case and all original paperwork.
Keuffel and Esser DECI-LoN 68 1100
(c) 1947, 1961. Heavy white plastic 10 in. by 2 in. Scales: Ln-3,Ln-2,Ln-1,Ln-0,A,B,T,SRT,S,C,D,DI,K,Sq1,Sq2,DF,CF,CIF,L,CI,C,D,Ln0,Ln1,Ln2,Ln3. In brown leather case.
Keuffel and Esser Log Log Duplex Decitrig 68 1210
Hardwood and ivory 10 inch. (c) 1947. Stator scales: LL01,L,K,A, D,D1 and LL1. on one side, LL02,LL03,DF,D,LL3 and LL2 on obverse. Slide scales: B,T,S and SRT on one side; C,CI,CF and CIF on the obverse. In original brown leather case.
Keuffel and Esser Polyphase Duplex Pocket Model 68 1550 1966
5 inch, white plastic. Stator scales: K,A, D and T on one side, DF,D and L on obverse. Slide scales: B,T and ST on one side; C,CI and CF on the obverse. With green leather case (with pocket clip), manual and care pamphlet in original packing.
Keuffel and Esser N 4053-3
Hardwood and ivory 10 inch. Pat 1.934.232 on stator,2.086.502 on cursor. Scales A, D and K on one side of stator, conversions on obverse. B,C and CI on one side of slide, S, L and T on obverse. With original brown leather case.
Keuffel and Esser N 4058W
Beginner's rule. 10 inch, wood. Stator scales: A, D and K. Obverse side has conversion factors. Slide scales: B, C and C1 on one side; S, L and T on the obverse. In a cheap green case
Masoneilan Valve
Valve calculator functions for liquid and steam flow and pressure drop, etc.
Perrygraf Circular 621 1947
5 in. cardboard with plastic cursor. Inner circle has scales D,A,K and L. Outer has scales C and CI. Bears advertising for National Engineers and Manufacturers, makers of communications devices. Obverse side has time wheel for the World with 24 zones.
Pickett Trainer
10 inch, White plastic. Scales S,K,A,B,C1,C,D,L and T on one side, equivalents on the obverse. In leatherette case with manual 'How to use Basic Slide Rules', a Hartung classic.
Pickett 1025
White metal rule with 10 in. scales. For Divisions of Associated Spring Corporation, this device apparently computes spring rates based on variables such as wire size, number and spacng of turns, etc. With brown leatherette case.
Pickett Profit Calculator 105C
4 inch circular plastic device made to calculate Markup on cost, Discount from list or Percent profit.
Pickett Microline 120
10 in. white plastic rule in a black leatherette case marked United Electronics Institute. Stator scales: A,D,L and K on one side, blank on the obverse. Slide scales: B,S,T,C and CI on one side, blank on the obverse.
Pickett US Military 14
12 inch by 2 inch, yellow aluminum. Stator scales LL1, LL2, LL3 and LL4 on one side A and D on obverse. Slide scales B,T,ST,S,K and C on one side obverse is labeled Apex Angle, TAN, SIN-TAN,SIN and BASE. In brown leather case with original Pickett manual.
Pickett Electronic N 16-ES
This yellow 10 in. all-metal rule was designed by Chan Street. 9 stator scales on one side, 7 on the obverse, combine with 5 slide scales on one side, 4 on the obverse, to permit calculation of many variables. In matching leather case with belt loop.
Pickett Trig N 200-ES
5 inch yellow aluminum. York Refrigeration on case and rule.Stator scales K,A,D and L on one side, D on obverse. Slide scales S,ST,T and C on one side, B,C and CI on obverse.
Pickett Trig N 200T
5 inch white aluminum. Southern California Gas Company on case and rule. Stator scales K,A,D and L on one side, D on obverse. Slide scales S,ST,T and C on one side, B,C and CI on obverse.
Pickett Trig N 200T
5 inch white aluminum. National Carbon Company on case and rule. Stator scales K,A,D and L on one side. Slide scales S,ST,T and C on one side, B,C and CI on obverse. 1949 copyright.
Pickett Power Log Exponential N 3-ES
Yellow aluminum 10 inch scales. In brown leather case with belt loop. One of the most desirable and difficult-to-find models.
Pickett Power Log Exponential N 3-ET
White aluminum 10 inch. In brown leather case. Many scales
Pickett HI Log-Log N 500-ES
10 inch yellow aluminum rule. Stator scales +LL1,-LL1,A,D,DI and K on one side +LL2,-LL2,DF,D,+LL3 and -LL3 on obverse. Slide scales CF,CIF,L,CI and C on one side, B,S,ST,T and C on obverse. With correct black leather case.
Pickett Log Log N 500-T
10 in. white aluminum. Stator scales: LL2,-LL2,DF,D,+LL3,-LL3 on one side, +LL1,-LL1,A,D,DI,K on obverse. Slide scales C,CI,CF,CIF,L on one side, B,T,S,ST and C on obverse. In black leather case. With original manual 'How to Use Log Log Slide Rules'.
Pickett Electronic N 515-T
White aluminum, 10 inch scales. In brown leather case. Rule and case are both marked Cleveland Institute of Electronics. An unusual item designed for calculating factors specific to the electronics industry.
Pickett Log Log N 600-ES
5 in. yellow aluminum. Stator scales LL1+,LL1-,A,D,D1and K on one side, LL2+.LL2-,DF,D,LL3+and LL3- on obverse. Slide scales B,T,ST,S and C on one side, C,CI,CIF,CF and L on obverse. In brown leather case w/pocket clip.
Pickett Simplex Math Rule N 901-ES
Yellow aluminum 10 inch. Stator scales A, D and L on one side, X and D* on the obverse. Slide scales B, C and C1 on one side, Y and C* on the obverse. With grey leatherette case in fair condition
Pickett Simplex Trig N 902-ES
10 inch, yellow metal. Stator scales A,D,L and K . Slide scales B,S,CI,C and T. Instructions and equivalent tables on obverse. No case or accessories
Pickett and Eckel 1006
5 inch scales, White aluminum. Scales K,A,D and DI on one side of stator DF,D and L on obverse. Slide scales B,ST,T,S,C on one side, CF,CIF,CI AND C on the obverse. In brown leather case with pocket clip.
Pickett and Eckel Deci log-log 2
(c) 1945, 47.10 in. white magnesium. 25 scales, several of which are marked with square root and cube root symbols which are not on my keyboard. In correct sturdy, but spartan, black rubber (plastic?) case embossed with maker's name.
Pickett and Eckel Vector Hyperbolic 4 1947
One of the most impressive of the early all-metal rules from this firm, this one was copyrighted in 1947. 14 scales on one side, 16 on the obverse. Legends include characters not on this keyboard! In original rubber carry case with belt loop.
Pickett and Eckel Vector Hyperbolic 4-ES
A very impressive model with all the scales needed for the rocket scientist! Ten inch scales , yellow metal rule. In original rubber case.
Pickett and Eckel Trig 62
Stator scales: K, A, D and L on one side. Slide scales: B, C, CI on one side; S, ST T on the obverse. White metal 5" . In brown leather case marked 'General Electric General Purpose Motor Dept.'.
Pickett and Eckel Vector Type log-log Dual Base Speed Rule. N 4-ES
Scales C, D, CI, CF, DF, CIF, DI, CI, T, ST, S, cube root, square root, DF/M, CF/M, TH, SH, Ln, L, and double scales: LL1, LL2, LL3, LL4. yellow metal 10" (c) 1959. In brown leather case.
Pickett and Eckel Log Log N 500-T
10 in. white aluminum. Stator scales: LL2,-LL2,DF,D,+LL3,-LL3 on one side, +LL1,-LL1,A,D,DI,K on obverse. Slide scales C,CI,CF,CIF,L on one side, B,T,S,ST and C on obverse. In black leather case.
Precision Sterling Pocket Mannheim
5 in. white plastic, this is an elementary rule with stator scales A, D and K. Slide scales are B,C and C1 on one side, S,L and T on the obverse. In a brown plastic case that proclaims Sterling as a part of the Borden Co. with instructions, too!
Precision Sterling 587
5 in. white plastic. Stator scales A, D and K. Slide scales B, C and C1 on one side S, L and T on the obverse
Precision Sterling Decimal Trig Log-Log 594
10 in. white plastic, with stator scales LLO1,LL1, A, D,D1 and K on one side, LLO2,LLO3,DF,D,LL3 and LL2 on obverse. Slide scales B,T<,T>,ST and S on one side, C,CI,CF,CIF and L on the obverse.
Radiac Radiation Exposure Calculator 1
A 5 inch dia.circ, white/blue plastic device for military use after an atomic explosion. Reversible for use on land or sea. Still scary stuff even after the Cold War. A great addition to any collection!
Relay Ideal Bamboo 403
Made in Occupied Japan, this is a real cutie. 4 1/2 in. overall length. Bamboo/plastic. Stator scales D and A. Slide scales C,C1 and B on one side, S,L and T on obverse. In original leather case
Sans and Streiffe 310
Bamboo. White. 10 in. scales. Stator scales: K, A, D and L. Slide scales B, C CI on one side, S, T and S&T on the obverse. With manual and black case with belt loop in original box.
Scientific Instruments Co. 1510 1961
The nicest bamboo rule we have ever had- probably made by Hemmi. Stator scales:(e±x LL1,LL2,LL3),DF,D on one side, (e± LL0),L,K,A,D,DI,P on obverse. Slide scales C,CI,CF and CIF on one side, B,S,ST,T,C on obverse. In brown leather case.
Sun Hemmi
A wonderful little (4 1/2 in.) bamboo and ivory rule with a magnifying cursor. Stator scales A and D, slide has S,L and T on one side, B, C and CI on the obverse. In a light brown leather case with pocket clip.
Sun Hemmi 153 Vector Hyperbolic
With special scales used in the electrical / electronics field, this is an unusual high quality bamboo rule in a matching leather case. Stator scales are:L,K,D,A,T,G on one side, 0,R,P,LL3,LL2,LL1 on the obverse. Slide scales: B,CI,C on one side, Q,Q', C on obverse.
Sun Hemmi Post 1441
A bamboo rule with 4 in. scales. Stator scales A and D; Slide scales B,C and CI on one side, S,L,T on obverse. In original leather case. Cursor has unusual curved metal guards, apparently to protect the glass?
Sun Hemmi Post 1445
9 in. overall length. Bamboo/plastic. Stator scales K,D and A. Slide scales C,CI and CF on one side, S,L and T on obverse. In original slide-together cardboard case
Sun Hemmi Post 1446
A wooden rule in original box. Stator scales are:A,K and D. Slide has B.C and Ci on one side, T,L,S on the obverse.
Sun Hemmi Post 1447
10 in. wood rule. Scales A, D and K on one side of stator, conversions on obverse. B,C and C1 on one side of slide, S, L and T on obverse. No case
Sun Hemmi Post (Versalog) 1460
A high quality bamboo rule with 10 inch scales. Stator scales are:LL0,LL/0,K,D,R1,R2,L on one side, LL/1,LL/2,LL/3,D,LL3,LL2,LL1 on the obverse. Slide scales: T,ST,S,C on one side, CF,CIF,CI C on obverse. In a brown leather case with belt loop.
Sun Hemmi Post (Postrig) 1462H
Made in Occupied Japan, this high quality bamboo rule has 10 inch scales. Stator scales are:T,DF,D,S,T on one side, LL0,LL00,A,LL3,LL2,LL1 on the obverse. Slide scales: B,K,L,C on one side, CF,CIF,CI C on obverse. In a beige canvas case (no belt loop).
Sun Hemmi 250
In the original box, an excellent example of the high-quality bamboo devices from this Japanese maker. 10 in. scales. Stator scales K,A,D and D1 on one side, DF,D and L on obverse. C,CF,CI and CIF on one side of the slide, B,SI,TI1 and TI2 on the obverse.
Sun Hemmi 259
White 10 in. by 1 3/4 in. high quality bamboo rule. Stator scales are:LL0,LL/0,K,D,A,L on one side, LL/1,LL/2,LL/3,DF,LL3,LL2,LL1 on the obverse. Slide scales: B,T,ST,S,C on one side, CF,CIF,CI C on obverse. In a nice brown leather case.
U. S. Army Graphical Site Table M-72
Designed for use with 8 in. Howitzer artillery, these devices calculated the factors involved in firing artillery: range, altitude, charge and site angle. In canvas case M-86.
W.T.Rogers Co. Profit indicator 1111
4 inch circular, white plastic device made to calculate Profit on cost or Profit on Selling Price. copyright 1960
Wescosa Profit Wheel
4 inch circular, white and yellow plastic device made to calculate Markup on cost or Percent profit. copyright 1986
Document by DanDLyin Last Modified 2 Jan 2013