Three-foot folding rule with logarithmic slide, John Fry, London, 1752.
Details
- Category:
- Mathematics
- Object Number:
- 1915-299
- Materials:
- wood (unidentified) and brass (copper, zinc alloy)
- Measurements:
-
folded: 18 mm x 240 mm x 29 mm,
- type:
- folding rule and slide rule
- credit:
- Mr W. Bentley Capper