Wooden scale ruler

Made:
1839-1865 in London
maker:
Holtzapffel and Company
Wooden scale ruler, stamped Captain Haldane's Military Scales', by Holtzapffel & Co., London, used with a set square as

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Wooden scale ruler, stamped Captain Haldane's Military Scales', by Holtzapffel & Co., London, used with a set square as
Science Museum Group
© The Board of Trustees of the Science Museum

Wooden scale ruler, stamped "Captain Haldane's Military Scales", by Holtzapffel & Co., London, used with a set square as a modified form of Marquois scales, B1751

Details

Category:
Mathematics
Collection:
Sir Henry Wellcome's Museum Collection
Object Number:
1989-631
type:
set squares
credit:
On loan from the Wellcome Trust