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LicenseBoswell's parallel rule, stamped Banks, 441 Strand London'
Science Museum Group
© The Board of Trustees of the Science Museum
Boswell's parallel rule, stamped "Banks, 441 Strand London", ebony with brass cross pieces and ivory ruling edge
Details
- Category:
- Mathematics
- Object Number:
- 1972-255
- Materials:
- ivory, brass (copper, zinc alloy) and ebony (wood)
- type:
- rules (drawing) and parallel rules
- credit:
- Mr Peter Delehar
