Claymo of an unknown master of Astrachani - initials of NN 1827
Similar hallmarks
НТClaymo Master Tokmakov Nikolai Vasiliev, with the red initials of the NT, 1898.
I-E-FThe stamp of the artist Frank Ioan Enok - Leningrad - initials "I-E-F".
I.ЩClaymo Master Schetininin Ilya Fomich - Moscow - initials I.S. - 1892-1900.
The stigma of the Serebryanikov workshop in Vilnius - around 1600 "Workshop"
IHLLanski Yakob Henrich - Riga - initials IHL - early 19th century
HIClaymo Master Jiri Hans (Irzy Hans) - Vilno - HI - 1687