Hoare's universal calculator or improved double slide rule in boxwood

designer:
Charles Hoare
Hoare's universal calculator or improved double slide rule in

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Hoare's universal calculator or improved double slide rule in
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Hoare's universal calculator or improved double slide rule in boxwood, 32" long by 1 7/8" wide, with two sliders

Details

Category:
Mathematics
Object Number:
1947-163
type:
slide rule (hoare)
credit:
Mr J.H. Pledge