Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 3

Friday, June 3, 2022 at 3:00 PM UTC

Soviet Union Stamps of 1924-40

Start price: $500

Buyer's premium:

1933, Baku Commissars, trial color perforated proof of 20k in brownish gray, printed on paper with watermark Borders and Rosettes, perforation L13¾, gummed, VF, Est. $750-$1,000 , Sc. #521