Geometrical pen
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Science Museum Group
© The Board of Trustees of the Science Museum
Geometrical pen, in wood case, with key: with ivory handle and various change wheels ( some teeth broken)
Details
- Category:
- Mathematics
- Object Number:
- 1928-940
- Materials:
- ivory and wood (unidentified)
- type:
- drawing machines and geometrical pens
- credit:
- Thomas H. Court
