Claymo Master John Johann Gotlib - Leningrad - initials of II

5А5th Moscow Arthel - initials 5A - after 1908.

ААClaymo Master Afanassiev Alexander - Moscow - initials AA - 1859-1884.

TBClaymo Master Boessen Theodor - Leningrad - TB initials

АНThe stigma of the master Holstrom August Wilhelm (Holstrom August Wilhelm) - Leningrad - initials "AN"

БГClaymo of an unknown master Leningrad - initials of BG - 19th century

ФПClaymo Master Pyrin Fedor, c. Red - initials of FP 1898.