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
Otis King's patent calculator in case (a spiral logarithmic slide rule)
Details
- Category:
- Mathematics
- Object Number:
- 1923-634
- type:
- spiral slide rule
- credit:
- Carbic Limited
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
