Riga Jewelry and Watch Factory - "RYu5" - 1955
Hallmarks
Similar items
Riga Jewelry Factory - "RYu8" - 1968
Tbilisi Jewelry and Watch Factory - "TY…
Riga Jewelry Factory - "RYu4" - 1964
Leningrad Plant "Russian Gemstones" - "…
Industrial Combine "Iskra Oktyabrya" - …
Riga Jewelry Factory - "RYu8" - 1958
Riga Jewelry and Watch Factory - "RYu3"…
Riga Jewelry Factory - "RYu0" - 1960
Tashkent Jewelry Factory - "TYu6" - 1966
Artel "Kibirshtis" - "PS0" - 1960