Hallmark of an Unknown Leningrad Master - Initials "Sh-I" - 1818-1844

Master's Mark of Nikolaev Dmitry Nikola…

Master's Mark of Kuzmin Ilya Kuzmich - …

Master's Mark of Artemiev Gavrila - Mos…

Hallmark of an Unknown St. Petersburg M…

Master's Mark of Gubkin Ivan Semyonovic…

Master's Mark of Dmitriev Pavel - Mosco…

Hallmark of an Unknown Master - Vladimi…

Hallmark of an Unknown Moscow Master - …

Master's Mark of Ovchinnikov Pavel Akim…

Master's Mark of Holst Christian - Riga…