The stigma of the master Reader Daniel - Leningrad - initials "DR"

B.H.Claymo Master Hinds George Berngard - Leningrad - initials "B.H."

CBClaymo Master Beyer Karl - Leningrad - initials of "CB."

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

C-TThe stigma of the master Tegelste Karl Johann - Leningrad - initials "C -T"

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

Е-БClaymo Leningrad's probe - Evgraphers - E-B initials - 1772-1783.