Claymo Master of Iconnikov S. M. - Moscow - initials of SI - 1860-1882.

П.СClaymo Master Samsonov Pavel Vasiljevic - Moscow - initials of P.C. - 1899-1908.

ВИClaymo Master Ivanov Vasili Ivanovich - Moscow - Initiators of the EVI - 1870-1908

ИЗKlemo Master of Zaharov Ivan Vasiljevic - Moscow - initials of IZ - 1856-1896

АСClaymo Master of Alexei Isaiev - Moscow - initials of AS = 20th century - 1830.

СКClaymo Master Courdukov Stepan Feophylacts, with red initials, end of 19 - early 20th century

ВД- Vilno - initials of the VD 1860-1890.