Claymo Master Muller Andreas - Leningrad - Initiators of "AMULLER"

Г.ЧЕРЯТОВClaymo Master of Cheryatov, Hor Kuzmich - Moscow - initials of G.Chernatov - 1900-1917.

R.TAVASTClaymo Master Tawast Roman - Tallinn - R.TAVAST - 1920-1940.

Н.МЕХОВЪClaymo Master of Mekhov N. - Leningrad - initials of "N. MECHOV" - after 1908.

ПАВЛОВЪPavlov's Master Claymo - Odessa - initials of the 20th century

Ф.ЛОРIЕClaymo Master Lori Fedor Anatolyvic - Moscow - initials of F.LORIE

СИЗОВЪClaymo Master Sisov - Leningrad - initials - 1814-1825.