A trigonometrical calculator, British, 1826-1842

Made:
1826-1842 in Suffolk, Ipswich and England
maker:
James Tree

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Calculating machine for trigonometry made by J. Tree, London and invented by B. B. Catt of Ipswich with case, 1826-1842

Calculating machine for trigonometry made by J. Tree, London and invented by Catt of Ipswich with case, mid 19th century. The device allows rapid solution of plane trigonometrical problems, and the construction of triangles to scale.

Details

Category:
Mathematics
Object Number:
1907-73
Materials:
complete, ebony, german silver, ivory
type:
trigonometrical calculators
credit:
J.C. Stevens Auction House

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