Comparative or reducing slide rule

Made:
1840-1850 in London
maker:
Joseph Long
Comparative or reducing slide rule, ivory, by J

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Comparative or reducing slide rule, ivory, by J
Science Museum Group
© The Board of Trustees of the Science Museum

Comparative or reducing slide rule, ivory, by J. Long, 20 Little Tower Street, London, 9" x 1 3/8", c. 1850

Details

Category:
Mathematics
Object Number:
1954-316
type:
slide rule
credit:
National Maritime Museum (Gabb Collection)