Claymo Master Korobca Fedor Mihailović - Kiev - initials of FC - 1809-1847.

К-ЕClaymo of an unknown master of Moscow - initials of the K-E - 2nd half of the 18th century

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

Ф.ЧClaymo of an unknown master of Climovichie - initials of F.C. - 1864.

ЕНClaymo of an unknown master of Moscow - the initials of EN - 1880 - the beginning of the 20th century

РТKleimo, unknown master Harkov, initials of RT, 1850.

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