
Hallmarks

Moscow Jewelry Factory - "MYu1" - 1961

Moscow Watch Repair Plant "Mosremchas" …

Metalware Plant No. 1 - "M12" - 1962

Metalware Plant No. 1 - "M10" - 1960

Metalware Plant No. 1 - "M13" - 1963

Metalware Plant No. 1 - "M14" - 1964

Kishinev Metalware and Metal Repair Fac…

Moscow Jewelry Factory - "MYu31" - 1961

Special Alloys Processing Plant - "Z₁S"…

Metalware Plant No. 1 - "M15" - 1965