
Hallmarks

Yerevan Jewelry Plant - "EYu4" - 1964

Leningrad Jewelry and Watch Factory - "…

Moscow Watch Repair Plant "Mosremchas" …

Sverdlovsk Plant No. 10 of the "Russian…

Jewelry Workshop No. 17 of the Metal Ho…

Kyiv Jewelry Factory - "KYu4" - 1964

Yerevan Jewelry Factory - "EYu5" - 1955

Yerevan Jewelry Plant - "EYu5" - 1965

Moscow Watch Repair Plant "Mosremchas" …

Sverdlovsk Plant No. 10 of the "Russian…