Claymo Master Hoffman Johann Conrad - Leningrad - initials of IH
Similar hallmarks
CRLClémo Master Linc Karl Reingold - Leningrad - initials of CRL
E-MClaymo Master Modig Elias - Leningrad - E-M initials
НГClaymo Leningrad - Gert Nikolai - initials of the NG - 1829-1833.
DHThe mark of the master Heikkinen Daniel Edward - Leningrad - initials "DH"
INKlemo Master Nordberg Joseph - Leningrad - Initiators IN
M-RClaymo Master Reichelyn Mathias - Leningrad - initials "M-R"