Ivory ullage and proof rule by J.Long, London
- Made:
- London
- maker:
- Joseph Long
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
Ivory ullage and proof rule by J.Long, London
Details
- Category:
- Mathematics
- Object Number:
- 1970-585
- type:
- slide rules (excise) and slide rules (ullage)
- credit:
- Stiff, C.G.
