Case for Otis King's patent calculator
Case for Otis King's patent calculator (a spiral logarithmic slide rule)
- Object Number:
- 1923-634 Pt1
- type:
- instrument case
- Image ©
- The Board of Trustees of the Science Museum
Otis King's patent calculator in case (a spiral logarithmic slide rule)
Details
Parts
Otis King's patent calculator (a spiral logarithmic slide rule)
Otis King's patent calculator (a spiral logarithmic slide rule).
- Measurements:
-
overall: 28 mm x 216 mm x 33 mm, 0.144 kg
- Materials:
- steel (metal) , paper (fibre product) and card
- Object Number:
- 1923-634 Pt2
- type:
- spiral slide rule
