Archive of Collections



Details and Image



TypeModel No.MakerCountryConstruction
Material
DateScale LengthArea of Use
Alcohol Slide Rules
Roberts / Everard 2-slide Type 2
Edward Roberts
UK
Wood/brass
1759-1769
30.5 cm
Gauging

Notes: "Roberts was a prolific maker of Everard type slide rules for UK Customs & Excise officers to perform specialised calculations for tax revenue. The back of the slides has all the necessary tax rates, conversion factors and scales for different barrel shapes. All four slides have a Vero Device on one end."


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