Special Alloys Processing Plant - "Z₃S" - 1963

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Special Alloys Processing Plant - "Z₃S" - 1963

Hallmarks

Special Alloys Processing Plant - "Z₃S" - 1963

Letter: Z₃S
Year: 1963-1962
Description: Special Alloys Processing Plant, Moscow Assay Office. The hallmark features the letters and numbers "Z₃S", with the digit 3 as a subscript. (1962)

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