17 washers
- Made:
- 1929
- maker:
- Sherard Osborn Cowper-Coles
17 washers, outside diameter 25mm, internal diameter 12mm, sherardized by Cowper Coles in 1929.
Details
- Category:
- Metallurgy
- Object Number:
- 2002-128
- Materials:
- steel (metal) and zinc (metal)
- type:
- sherardized washers
- credit:
- Mr. Peter Cowper-Coles.