Claymo Master of Chuviliaev Pavel Alexeiev - with Red - PAC initials - 1898.

ВККClaymo Master Kurduk Vassili Késariev, with the red initials of the VCC, the end of 19 - the beginning of 20th century

ЕПИClaymo of an unknown master Leningrad - initials of EFI - 1880.

П.Е.ДClaymo of unknown master Leningrad - initials of P.E.D. - 1879-1908.

НГKlemo, unknown master of Moscow, initials of the NG, 1832-1846.

НЧClaymo Master Chulkov Nikolai Capitones, with Red - Initiators of NIS - 1990s

G-F-RClaymo of unknown master Leningrad - initials of G-F-R - 1846-1849.