Spiral slide rule "R.H.S. Calculator" made by Steward

Made:: London

maker:: J H Steward Limited

Spiral slide rule "R.H.S. Calculator" made by Steward, with descriptive booklet; size of rule 11 1/2" long by about 7/8" diameter, metal, with paper scale

Details

Category:: Mathematics

Object Number:: 1922-92

type:: spiral slide rule

credit:: Lt. James F. Godwin

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Spiral slide rule "R.H.S. Calculator" made by Steward

Details

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