
Hallmarks

Leningrad Jewelry and Watch Factory - "…

Mstyora Artistic Factory - "YuM8" - 1968

Sverdlovsk Plant No. 10 of the "Russkiy…

Sverdlovsk Jewelry and Lapidary Factory…

Kyiv Jewelry Factory - "KYu8" - 1958

Sverdlovsk Jewelry and Lapidary Factory…

Baku Jewelry Factory - "BYu6" - 1966

Podolsk Jewelry Factory - "FP5" - 1965

Mstyora Artistic Factory - "YuM1" - 1961

Kyiv Jewelry Factory - "KYu6" - 1956