Special Alloys Processing Plant - "Z₁S" - 1961

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Special Alloys Processing Plant - "Z₁S" - 1961

Hallmarks

Special Alloys Processing Plant - "Z₁S" - 1961

Letter: Z₁S
Year: 1961
Description: Special Alloys Processing Plant, Moscow Assay Inspection. The hallmark features the letters and numbers "Z₁S", with the digit 1 as a subscript. (Year 1961)

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