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LicenseTwo washers,25mm outer diameter and 12mm inner diameter
Science Museum Group
© The Board of Trustees of the Science Museum
Two washers,25mm outer diameter and 12mm inner diameter, and a piece of aluminium sherardized by Cowper Coles on 15/7/27 using a mixture of 50% Zn, 50% talc, 1% napthalene.
Details
- Category:
- Metallurgy
- Object Number:
- 2002-141
- Materials:
- steel (metal), aluminium (metal) and zinc (metal)
- credit:
- Mr. Peter Cowper-Coles.
