Claymo Master of the Kurrivians Ivan Andrianov - Kaluga - initials of I.K - 1840-1870.
Similar hallmarks
ЕАThe stamp of the master Afanasyev Efrem Alexeev - Kaluga - initials "AЕ" - 1852-1858.
ИМClaymo of an unknown master Yaroslav - initials of IM - 1882.
А-КThe stigma of the test master of Tbilisi - Karpinsky - initials "A -K" - 1823-1829.
ARClaymo Master Reisman August - Tallin - AR initials.
Е.К.ЧClaymo Master Cheritov Hor Kuzmich - Moscow - initials E.K.C
И-ХClaymo Master Ivan Petrovich - Leningrad - I-X initials