This hallmark with star used from 1958 to 1994, the Catalog by Postnikova-Loseva has hallmarks from "ЯК8"-1958 and "ЯК0"-"ЯК5" for 1960-1965, but you have another combination of numbers and letters. It can be another decade.
Oel! You brought joy to my soul! I have read "Der Goldschmiede Merkzeichen..." of 1922 without any success =) Big Russian thanks to you for the link and the source, they make my happy!
Hi! I will appreciate if anybody can id these marks. It is an authentic silver piece , probably German, made before XVIII century. P.S. I'm sorry for single picture. I can't post any more, because owner of this plate doesn't let me post full view. http://www.silver-collector.com/files/gun_436.jpg