Slide rule

Description

Slide calculating rule by John Davis & Sons Ltd., Derby, in its original case, probably made between c.1920s and c.1950s. Used in mining industry

Museum reference

T.2018.62

Collection

Industry and Commerce

Object name

Slide rule

Production information

John Davis and Son (Derby) Ltd, Manufacturer of mining and surveying equipment
Derby, Derbyshire, England, Northern Europe

Date

c. 1920 - c. 1950

Materials

Plastic, Wood, Metal, Cloth, Card