Master's Mark of Adolf Sper - Leningrad - Initials "A-SPER"

Master's Mark of Zuev Ivan Matveev - Vo…

Master's Mark of Bernstrem Gustav Abram…

Maker's Mark of Master Stang Gotthard F…

Master's Mark of Grigorin Ivan Yakovlev…

Fabergé Master's Mark - Leningrad - Ini…

Master's Mark of Wennerström Olof Fredr…

Master's Mark of Johann Christian Prags…

Master's Mark of Gaetano Joseph - Odess…

Master's Hallmark of Uvarov Fedor Stepa…

Master's Mark of Heinrich Tapper - Leni…