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All the Rules

Thus begins a comprehensive picture list of all the slide rules in my collection. I have duplicates of many of the rules, but will only show one such sample if that happens, with the exception of the K&E rules. Each K&E sample will be listed, since their long history and continuity of a model line will show the evolution of the production of those rules.

Aristo

Nr. 621 Circular Aristo Nr. 621 Circular, front Aristo Nr. 621 Circular, back

Nr. 803 Mono-Rietz Pocket Rule Aristo Nr. 803 Mono-Rietz Pocket Rule, front

0958 Geodat Surveyor Rule Aristo 0958 Geodat Surveyor Rule, front

867 Darmstadt Pocket Rule Aristo 867 Darmstadt Pocket Rule, front

Nr. 965 Commerz II Aristo Nr. 965 Commerz II, front Aristo Nr. 965 Commerz II, back

Concise

Model 271 Concise Model 271, front Concise Model 271, back

No. 31 keychain circular rule for Nissan Concise No. 31 keychain circular rule for Nissan

Dietzgen

Redirule No. 1776 Dietzgen Redirule No. 1776, front

1778 Redilog Pocket Rule Dietzgen 1778 Redilog Pocket Rule, front

Diwa

851/4 Darmstadt Diwa 851/4 Darmstadt, front Diwa 851/4 Darmstadt, back

Faber-Castell

2/83N Novo-Biplex Faber-Castell 2/83N Novo-Biplex, front

8/10 Circular Faber-Castell 8/10 Circular, front Faber-Castell 8/10 Circular, back

62/83 Biplex Faber-Castell 62/83 Biplex, front Faber-Castell 62/83 Biplex, back

67/87R with Addiator Faber-Castell 67/87R with Addiator, front

111/54 A Addiator Darmstadt Faber-Castell 111/54 A Addiator Darmstadt, front

Graphoplex

615 Caltex Graphoplex 615 Caltex, front Graphoplex 615 Caltex, back

698 Electronicien Graphoplex 698 Electronicien, front

Hemmi

Model 35ML Hemmi Model 35ML, front Hemmi Model 35ML, back

250 General Computation Hemmi 250 General Computation, front

251 Mechanical Engineering Hemmi 251 Mechanical Engineering, front

255 Expert Electrical Engineering Hemmi 255 Expert Electrical Engineering, front

255D Expert Electrical Engineering Hemmi 255D Expert Electrical Engineering, front

256 Radio Communications Hemmi 256 Radio Communications, front

259D Expert Mechanical Engineering Hemmi 259D Expert Mechanical Engineering, front

266 Electronics Hemmi 266 Electronics, front Hemmi 266 Electronics, back

274 General Engineering Hemmi 274 General Engineering, front

P281 Student Simplex Rule Hemmi P281 Student Simplex Rule, front and back

410 “Involute of Gear Wheels” Hemmi 410 Involute of Gear Wheels, front

K&E (Keuffel & Esser)

4088-1 Pocket Polyphase Duplex K&E 4088-1 Pocket Polyphase Duplex, front

4097C Ever-There K&E 4097C Ever-There, front K&E 4097C Ever-There, back

4097D Ever-There K&E 4097D Ever-There, front K&E 4097D Ever-There, back

4139 Cooke Radio Rule K&E 4139 Cooke Radio Rule, front K&E 4139 Cooke Radio Rule, back

4168 Doric K&E 4168 Doric, front K&E 4168 Doric, back

4181-1 Pocket Log Log Decitrig K&E 4181-1 Pocket Log Log Decitrig, front

Deci-Lon 5 Model 68-1300 K&E Deci-Lon 5 Model 68-1300, front

GP-12 Model 68-1565 K&E GP-12 Model 68-1565, front K&E GP-12 Model 68-1565, back

Logarex

27205 Logarex 27205, front Logarex 27205, back

Norma

Ronda 100 Norma Ronda 100

Pickett

B1 Pickett B1, front Pickett B1, back

N4-T Pickett N4-T, front

N4P-ES Pocket Pickett N4P-ES Pocket, front Pickett N4P-ES Pocket, back

N16-ES Electronic Pickett N16-ES Electronic, front

C19-T Collins Microwave Transmission Pickett C19-T Collins Microwave Transmission, front

Model 100 Douglas Sky Rule Pickett Model 100 Douglas Sky Rule, front

Model 101-C Dial-Rule Pickett Model 101-C Dial-Rule, front

Model 103ES Mark-Up Calculator Pickett Model 103ES Mark-Up Calculator, front

Model 106C Proportional Scale Pickett Model 106C Proportional Scale, front

Model 111-ES Circular Pickett Model 111-ES Circular, front

N200-T Pickett N200-T, front Pickett N200-T, back

N300-T Pickett N300-T, front Pickett N300-T, back

Model 400 Pickett Model 400, front Pickett Model 400, back

N600-ES Pickett N600-ES, front Pickett N600-ES, back

Model 700 USAF Aerial Photo Pickett Model 700 USAF Aerial Photo, front

N808-T Standard Marine Fuels Pickett N808-T Standard Marine Fuels, front

N1006-ES Pickett N1006-ES, front Pickett N1006-ES, back

Post

Post 1441 Post 1441, front Post 1441, back

Post Hemmi 1461 Electronic Post Hemmi 1461 Electronic, front Post Hemmi 1461 Electronic, back

Post 1461 Pocket Versalog 1 Post 1461 Pocket Versalog 1, front Post 1461 Pocket Versalog 1, back

Post 1461 Pocket Versalog 2 Post 1461 Pocket Versalog 2, front Post 1461 Pocket Versalog 2, back

Sans & Streiffe

No. 313 Sans & Streiffe No. 313, front Sans & Streiffe No. 313, back

SIC - Scientific Instruments Company

Star No. 25 for General Motors SIC Star No. 25 for General Motors, front

No. 1610-D Circular SIC No. 1610-D Circular, front SIC No. 1610-D Circular, back

Staedtler

No. 54428 Staedtler No. 54428, front Staedtler No. 54428, back

Standardgraph

Standardgraph Nr. 900 Standardgraph Nr. 900, front Standardgraph Nr. 900, back

Unique

Unique Log Log Pocket Unique Log Log Pocket, front Unique Log Log Pocket, back