Leningrad Jewelry and Watch Factory - "LYU1" - 1961

Hallmarks

Leningrad Jewelry and Watch Factory - "LYU1" - 1961

Letter: LYU1
Year: 1961
Description: Leningrad Jewelry and Watch Factory, Leningrad Assay Office. The hallmark features the letters and numbers "LYU1". (1961)

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