"Automatic calculator"
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"Automatic calculator", a circular logarithmic slide rule, scale about 10" long, made of thin card
Details
- Category:
- Mathematics
- Object Number:
- 1905-117
- Materials:
- paper (fibre product), card and wood (unidentified)
- Measurements:
-
Lying flat: 10 mm x 117 mm x 147 mm, 0.026 kg
- type:
- circular slide rule
- credit:
- Major-General H.P. Babbage
