Aristo

83

89

99

816

868

869

870

810

909

929

901

903

906LL

958

968

903LL

903LL

967

970

10072

602

623

80126

Blundell

Radiac

410

TR53

Mark 1

Mark 5

Calculigraphe

Chinese

1203

1205

1200

6502

1002

1001

1004

Concise

380

260

28N

32

Curta

Type I

Dietzgen

1751

1739L

1797M

1738

1732

1744

1757

1746

1749

1797A

1771

1737

Diwa

111

601

Dring and Fage

Faber

decimal keeper cursor

multiplication cylinder

Faber Castell

1 / 61

1 / 87A

1 / 98 Elektro

2/82

2/83

2/84

8/10

8/30

62/83

62/83N

63/83

63/87R

67/54

TR1

TR2

TR3

V.I.7-80

elektro

Farmar

Fearns & Mear

production engineers calculator

universal metric

circular slide rule

international unit conversions

shaft size and horsepower calculator

ft-in-mm calculator

international unit converter

HP and torque calculator

shaft size and horsepower calculator

valve sizing calculator

steel weight calculator

Angus HP calculator

presswork calculator

metriweight calculator for steelwork

weight calculator for steelwork

quality control calculator

Rotoscale circular slide rule

tank capacity calculator

economic batch size calculator

belt capacity conveyer calculator

standard machining time calculator

steel hardness conversions calculator

"in-mm-in metric converter 12"""

standard time calculation for engineers

gear rating computer

pipe flow calculator

purchase discount calculator

gas flow calculator

in to mm conversion calculator

weight conversion calculator

machine time calculator for milling

lathework calculator

screw thread metric converter

domestic central heating calculator

costing and estimating calc for decimal currencies

date calculator

fuel and steam cost calculator for Esso

circular slide rule

electric lighting calculator

trigonometry calculator

buyers calculator

Farmer's Weekly metric converter

industrial central heating calculator

inertia calculator for rotating masses

standard depth of cover calculator

weight calculator for castings

glare index calculator

belt capacity calculator

comprehensive conversions calculator

road surfacing calculator

Time Clerk Calculator

Conveyer Belt Calculator

Pressure Converter

Fowler

Univeral

Long Scale

Gilson

Midget

Atlas

Graphoplex

640

1600

10020

643

650

620

10000

Gunter

Halden

Calculex

Calculex

Hemmi

34103734

64

257

256

153

32

22

135

P253

259D

255D

251

2664

Keuffel & Esser

68-1210

N4092-5

4088-5

4092-5

4088-5

4160

4160

4160

4160

4153-1

4161-3

4181-3

4097C

6801434

68 1555

68 1261

9068

4161-1c

68 1565

68 1210

68 100

4070-3

4071T

4071-3

4065T

N4053-3

N4100

4053-F

4054

4054

4041

N4041

4041

4053-3

N4053-2

4181-1

4053-2

4081-1

4031

4088-2

4031

4081-1

4098

4088-2

4035

4139

4139

68 1460

4139

4095-3

4095-3

4088-3

4088-3

4088-3

4088-3

4088-3

4088-3

4083-3

4081-3

68 1210

4080-3

4080-3

4092

4092-3

4092-3

4092-3

4081-3

4081-3

4081-3

4081-3

4081-3

Lawrence

8-L

10B

10B

10F

8-B

6-0p

250-BT

10-N

Logarex

27403-II

27403-III

27401

27403-X

27602-II

27607

27205

27103

Lord's Calculator

Miscellaneous

water line capacity

water line capacity

Chemical Calculator

Chemical Predictor

Interest Calculator

Chemical formulator

Fluid Density Calculator

Chemical Formulator

Press Calculator

Omnimetre

Orifice Computer

30

100

190

Balloon Design Estimator

3223

Series 11

230B

20816

Balloon Pilot Slide Rule mark IV

Paper Equivalent Slide Rule

Nestler

0218

210

252

0401

4

0370

0370

23

10

0330

0218

0130

0137

11E

!!D

0115

Novotni

weight rule

weight rule

weight rule

Otis King

Otis King Model K

Otis King Model L

Otis King Model K

Pickett

N3-ES

N4-T

N3p-T

N400

510-T

2

2-T

N1080-ES

N3-T

N525-ES

1373-ET

N4p-T

101-C

14

N515-T

1025

N531-ES

600-ES

N4p-ES

N4-ES

N535-ES

1050

20

Post

1461

1460

1460

1442

1445

1443

Russian

Sinco

1610

1610-D

120-D

250

300B

5050

4030

1570

1530-A

1020

1520

Thornton

PIC

Scott-Teed

P281

Troger

12 cm

30 cm

Unique

J180

Dualistic high Speed Pocket Slide Rule

Log Log Pocket Slide Rule

Craft Slide Rule

Electrical Slide Rule

Commercial Slide Rule

Legible Slide Rule

Navigational Slide Rule

Chemical Slide Rule

Log Log Slide Rule

Dualistic high Speed Slide Rule

Log Log Slide Rule

Universal One Slide Rule

Universal I Slide Rule

Universal Two Slide Rule

Universal II Slide Rule

Study 500

Unknown