Claymo Master Silund Karl Gustave - Leningrad - initials of C.G.S

I.C.AClaymo of an unknown master Leningrad - initials I.C.A. - 1858.

O-R-PClaymo Master Pettelius Otto Reinhold - Leningrad - O-R-P initials

G.F.STThe stigma of the master Stang Gotgard Ferdinand - Leningrad - initials "G.F.ST"

F.E.H.The stigma of the master Henrichsen F. E. - Leningrad - the initials "F.E.H."- 1870-1890

G-M-TClaymo Master Tolpo Gabriel Martin - Leningrad - G-M-T initials

F.O.F.The stigma of the master FAGERSTRAMMA FRARTS Oscar - Leningrad - initials "F.O.F."