
Hallmarks

Yerevan Jewelry Plant - "EYu4" - 1964

Moscow Jewelry and Watch Factory - "MYu…

Sverdlovsk Jewelry and Lapidary Factory…

Yerevan Jewelry and Lapidary Factory - …

Baku Jewelry Factory - "BYu6" - 1966

Kyiv Jewelry Factory - "KYu7" - 1967

Kyiv Jewelry Factory - "KYu4" - 1964

Jewelry Workshop No. 3 of the Kharkiv "…

Yerevan Jewelry Factory - "EYu4" - 1954

Sumgait Household Services Combine - "S…