Claymo Master Oberg Andreas - Tallin - Initiators AO - 1755-1790.
Similar hallmarks
GVThe stigma of the master Vendt Georg - Riga - the initials "GV" - 1777-1786.
ТЗKleimo, unknown master of Moscow, initials of TZ, 1735.
ЯСClaymo Master of the Forty Yakov Nikolayev, with the red initials of the YAS, 1898.
Д.С.Claymo Master Smirnov Dmitri Lukić - Moscow - initials D.S.
СПKleimo, unknown master Novgorod, initials of the SS, 1748-1770.
СПClaymo Master Pavlov Semen Pavlovic - Leningrad - initials of SS 1898 - early 20th century