Proof Rule (c. 1840)
- maker:
- Robert Brettell Bate
Proof Rule (c. 1840), sliding, 14" long, by R.B. BATE. LONDON
Details
- Category:
- Mathematics
- Object Number:
- 1993-1239
- type:
- slide rule (excise)
- credit:
- National Maritime Museum (Gabb Collection)
Proof Rule (c. 1840), sliding, 14" long, by R.B. BATE. LONDON