Clay Master Tallberg Henrik - Leningrad - Initiates "H.T"

МЯClaymo Master Yakovlev Mikhail - Moscow - initials of IA - 1821-1823.

КПKlemo Master Konstantin Yakoljevic - Moscow - initials of KP - 1835-1875

И.КClaymo of an unknown master of Vlogda - initials of I.C. - 1843-1845.

ПАClaymo of the unknown master of Novgorod - initials of the "P" - 2nd half of 19th century

П.Е.ДClaymo of unknown master Leningrad - initials of P.E.D. - 1879-1908.

М-КThe hallmark of the Moscow assayer - Mikhail Mikhailovich Karpinsky - initials "M-K" - 1800-1824.