Small screw,12mm long, sherardized by Cowper Coles in 1929.
Details
- Category:
- Metallurgy
- Object Number:
- 2002-113
- Materials:
- metal (unknown)
- Measurements:
-
: .4724 in.; 12 mm
- type:
- small sherardised screw
- credit:
- Mr. Peter Cowper-Coles.