Mr. Hasselgren Joachim - Leningrad - initials of JH

LongKlemo Master Long Henry August - Leningrad - initials Long

EHKlemo Master Heathelyn Eric - Leningrad - EH initials

M.S.Claymo Master Skitt Mathias - Leningrad - initials "M.S."

O-PClaymo Master Pettelius Otto Reinhold - Leningrad - initials "O-P."

ВПKlemo Master Popov Vasili Ivanovich - Moscow - initials of GP 1816-1868.

GOClaymo Master Okreblo Gustave Magnus - Leningrad - initials of GO