This is a large deep Russian plate with a family crest. Anyone knows the crest? And maybe the marks as well?
As for the marks under the plate in a row, I read (a double struck and hard to read) 1861 and I.B. in cyrillic = I.W unidentified master? (nr 1209, but then without a second dot, Verzeichnis der Russischen Gold- und Silbermarken), an unidentified ancre, the name Malez.
Regards,
Zilverik





