Sections
Hallmarks-Masters
Fineness "56"
Hallmark "NP"
Assay Mark "960"
Fineness Mark "583"
Hallmark, January 7, 1954-1958 "NP"
Fineness Mark "500"
Assay Mark "950"
Hallmark, Approved from May 7, 1958
Hallmark Approved from May 7, 1958
Master's Mark of Portnov Afanasy Gavril…