Claymo Master of the Romans Ilya Ivanov - Great Ustug - initials of the IR - 2nd half of the 18th century
Similar hallmarks
СИKleimo, unknown master Calugi, initials of SI, 1793.
ЛСKlemo, unknown Master Novosticasska, LS initials, 1841.
ADClaymo of an unknown master of Archangelska, the initials of AD 1848
АЛThe stigma of the master Lukyanov Andrei Lukyanov - Smolensk - initials "Al" - 1878-1890.
Д-ОMaster's stamp Orlov Dmitry Ivanovich - Moscow - initials "D-O" - 1840-1872.
СМClaymo Master Measoidov Sem. - Moscow is the initials of the SM. 19th century