Four safety pins, continuously sherardized by Cowper Coles in the 1920s.
Details
- Category:
- Metallurgy
- Object Number:
- 2002-221
- Materials:
- steel (metal) and zinc (metal)
- Measurements:
-
: .0787 x .2362 x 1.4961 in.; 2 x 6 x 38 mm
- credit:
- Mr. Peter Cowper-Coles.