Mr. Sohka Thomas - Leningrad - initials of T.S

F.F.The stigma of the master Frezen Frederick Achates - Leningrad - initials "F.F."

I.ФClaymo Master Fedorov Ivan - Moscow - initials I.F. - 1801-1821.

И.КKlemo Master Conon Ivan - Leningrad - initials I.C. - 1832-1841.

С-БThe stigma of the master Bogdanov Semen Trofimov - Leningrad - initials "SB" - 1828-1875.

К-КClaymo of an unknown master Leningrad - initials K-K - 1836.

ПАClaymo of the unknown master of Novgorod - initials of the "P" - 2nd half of 19th century