The stigma of the master Wulf Georg Wilhelm - Tallinn - initials "GW" - 1838-1882.

СМThe color of the unknown master, with the red initials of the SM, the end of 19 - the beginning of the 20th century

ЕМThe glue of an unknown master - the red - the initials of "EM" - the beginning of the 20th century

АСStamp of master Sparыshkin Alexander Ivanovich - Moscow - initials "AS" - 1907-1914.

АСClaymo Master Smirnov Alexei, c. Red - Initiators AS - 1898.

IWLThe stigma of the master Lundberg Johann Wilhelm - Tallinn - initials "IWL" - 1788-1806.

МОClaymo of an unknown master of Moscow - initials of the IMO - 1828.