Ivory parallel rule, six inch
Ivory parallel rule 6-inch, (B502; A54794)
Details
- Category:
- Mathematics
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- 1980-1133
- Materials:
- ivory and fittings, electrum
- type:
- rules (drawing) and parallel rules
- credit:
- On loan from the Wellcome Trust