ONE OF A KIND MODERNIST Vintage BALTIC EGG YOLK /BUTTERSCOTCH AMBER NECKLACE from 1960-1965 (USSR era). 

It has a mark 4ЯК (probably was made by Kaliningrad factory of Amber). The metal is German Silver or Melchior.

Necklace is in great condition.

Weight:  33.85 Grams.

Must have!