
Six inch boxwood sector by Holtzapffel & Co.

One of two boxwood sectors (6-inch) by Holtzapffel & Co., 64 Charing Cross London (B518)
Details
- Category:
- Mathematics
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- 1980-1151/1
- Materials:
- boxwood and hinge, brass
- Measurements:
-
overall - closed: 4 x 160 x 35 mm
- type:
- proportion drawing instruments and sectors
- credit:
- Wellcome Trustees