Master's Mark of Jantzen Christian Andreas - Leningrad - Initials "IANTZEN"

Master's Mark of Unger German Gottlieb …

Master's Mark of Karl Boyanovsky - Leni…

Master's Mark of Kordes Alexander - Len…

Fabergé Master's Mark - Leningrad - Ini…

Master's Mark of Sokolov Alexander Niko…

Master's Mark of Modig Elias - Leningra…

Master's Mark of Schroder Johann Lorent…

Master's Mark Heldan Anders - Leningrad…

Master's Mark of Ivan Frolov - Moscow -…

Master's Mark of Ljung Anders Wilhelm -…