Master's Mark of Johann Spannier - Riga - initials "IS"

Maker's Mark of Skendzievski J. (Skendz…

Master's Mark of Evdokimov Evdokim Evdo…

Master's Mark of Login Mikhailov Soroki…

Master's Mark of Pyotr Shvindt - Lening…

Master's Mark of Schubert Johann Heinri…

Master's hallmark Sitnikov Ivan Aleksan…

Master's Mark of Dobberman Ephraim - Ri…

Master's Mark of Schlichtekrull Balzer …

Master's Mark of Yakov Fedorov - Moscow…

Master's Mark of Ivanov Andrey - Moscow…