Klemo Master Mikhail Ivanov - Great Ustug - initials of M-K - 1835-1896.

МКClaymo of an unknown master Tbilisi - initials of the MK - the beginning of the 20th century

ИКClaymo of an unknown master of Kurska, the initials of the IC, the first half of the 19th century

14АFourteenth Moscow Arthel, initials of "14A" after 1908.

Ф.ИClaymo Master Ivanov Fedor - Moscow - initials F.I. - 1843-1882.

IЗМClaymo Master Manila Ivan Zinuev - Initiators of IZM

ИМKlemo Master Ikin Ivan Nikolaev - Moscow - initials IM - 1886 - after 1908.