Bidspirit auction | Soviet Union stamps of 1923-32
Soviet Union stamps of 1923-32 - 1930, Educational Exhibition, 10k olive green, two blocks of four, one with bottom sheet margin, printed on white or creamy paper, full OG, NH, VF , Sc. #435 var
Soviet Union stamps of 1923-32 - 1930, Educational Exhibition, 10k olive green, two blocks of four, one with bottom sheet margin, printed on white or creamy paper, full OG, NH, VF , Sc. #435 var