“Assaying And Hallmarking in Russia (1700-1946)”
by A.Ivanov, well illustrated, 752 pages + CD, excellent reference catalog on Russian silver and gold marks. Text in Russian and English.

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“Gold And Silversmiths In Russia (1600-1926)”
by A.Ivanov, two volumes, 461 + 446 pages and CD, published in 2002, superbly illustrated reference book on workmaster’s marks, a companion to the previous book on assay marks, in Russian and English.