Railway slide rule
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LicenseOne of nine railway slide rules, English, three signed P.H.J
Science Museum Group
© The Board of Trustees of the Science Museum
One of nine railway slide rules, English, three signed "P.H.J. 1928", eight paper on wood with brass fittings and one ivorine on wood
Details
- Category:
- Mathematics
- Object Number:
- 1986-379/3
- Materials:
- complete, wood (unidentified), brass (copper, zinc alloy) and paper (fibre product)
- type:
- slide rule (railway)
