Brass set square, 60 and 30 degree angles, with protracting and 1/4 inch scales, made by Holtzapffel & Co., London, B4364, A50981
Details
- Category:
- Mathematics
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- 1989-656
- Materials:
- brass
- type:
- squaring drawing instruments and set squares
- credit:
- On loan from the Wellcome Trust
