
Brass slide rule
Brass slide rule, by Troughton, 7 1/2 " long, 3/4" wide with one slide; engraved at ends on one side, "Troughton's London fecit", on other side, "John Booth Brush house 1791".
- Materials:
- brass (copper, zinc alloy)
- Object Number:
- 1911-194/1
- type:
- slide rule
- Image ©
- The Board of Trustees of the Science Museum