
Hallmarks

Moscow Jewelry Plant - "MYu32" - 1962

Metalware Plant No. 1 - "M10" - 1960

Metalware Plant No. 1 - "M13" - 1963

Moscow Jewelry Factory - "MYu2" - 1962

Metalware Plant No. 1 - "M14" - 1964

Melchior Products Factory - "M₆3" - 1956

Metalware Plant No. 1 - "M11" - 1961

Special Alloys Processing Plant - "Z₁S"…

Metalware Plant No. 1 - "M15" - 1965

Special Alloys Processing Plant - "Z₂S"…