Slide rule

DateCirca 1850

Mediumwood, brass

Dimensions10 in. (25.4 cm)

Donor credit lineKendall Whaling Museum Collection Transfer

Object number2001.100.3030

Institutional Credit LineCourtesy of the New Bedford Whaling Museum

DescriptionA single slide rule made of boxwood and brass with the ends marked;"N. Cleaves. Boston/Harris Patent." The slide has two scales (30 -100 and 0 to 100). Probably for calculating temperature effects on specific gravity. Part of the Oil testing kit (2001.100.3032).

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