Bidspirit auction | Soviet Union - Large Die

Soviet Union - Large Die Proofs - 1978, Georg Ots, Estonian Singer, 4k in slate blue (issued color), artists P. Kukhtein and V. Trager, engraver V. Smirnov, printer's markings at four sides, size 90x120mm, no gum as issued, VF, Est. $400-$500 , Sc. #4818