Ham's combined ullaging and proof rule
- maker:
- Charles John Cooper
This image is released under a CC BY-NC-SA 4.0
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Science Museum Group
© The Board of Trustees of the Science Museum
Ham's combined ullaging and proof rule, 4ft x 3 1/2", with 3 slides for gauging calullatis, signed C.T.Cooper, London, 1870-1899.
Details
- Category:
- Mathematics
- Object Number:
- 1954-321
- type:
- slide rule (ullage)
- credit:
- National Maritime Museum (Gabb Collection)
