Klemo Master Muhin Olga Philipovna - Moscow - initials of O.M

S.WClaymo Master Vekeva Stefan - Leningrad - initials of S.W.

ЯСClaymo Master of the Forty Yakov Nikolayev, with the red initials of the YAS, 1898.

РБClaymo Master Begak R. B. - Vilno - initials of RB - 1890 - early 20th century

G.S.Claymo Master Simonsson Karl Gustave - Leningrad - initials "G.S."

Р.В.Claymo Master Weida Rudolph Constantinovic - Leningrad - initials "R.V." - 1874-1915.

СПClaymo Master Pavlov Semen Pavlovic - Leningrad - initials of SS 1898 - early 20th century