Alloy of two parts of silver and one of platinum. Prepared by Johnson
- Made:
- before 1889
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Science Museum Group
© The Board of Trustees of the Science Museum
Alloy of two parts of silver and one of platinum. Prepared by Johnson, Matthey, and Co.
Details
- Category:
- Metallurgy
- Object Number:
- 1889-164/1908
- type:
- specimen
- credit:
- John Percy Collection
