Claymo Master Weis Gustav - Tallin - GW initials - 1791-1818.

GWThe 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

GMClaymo Master Muring Johann Gottfried - Tallin - GM - 1790-1818.

ОАClaymo, unknown master Ordzhonikidze, initials of OA 1886-1896.

ААСClaymo Master of Stolarov Anna Akimona - Moscow - initials of AAS - 1883-1900.

АЗKlemo Master Zuev Alexander Ivanov - Vlogda - initials of AZ - 1854