The stigma of the master house Nikolai - Leningrad - initials "ND"

МРClaymo Master Ratner Moses - Costrom - initials of the ML - end of 19 - early 20th century

A.DClaymo Master Dutherk Alexander - Leningrad - initials A.D. - 1786-1823.

GNClaymo Master Neyman Karl Gustave - Leningrad - initials GN

ПОClaymo Master Osminin Petr Konstantinov, with Sidorovsky, initials of the PO, 1898.

AIClaymo Master Ivanov Andrei - Moscow - Initiators AI - 1749-1762.

J.NClaymo of an unknown master Leningrad - initials J.N. - 1898-1908.