Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Russia And Soviet Union - 1931-32, Airship Construction issue, 10k-1r, engraved 15k and gray blue 50k, error of color, group of 14 covers, representing all stamps of the issue, solo franking or uprated by other stamps from the period, most sent from Moscow or Leningrad, but also from Gorky, Rostov, Balaklava, cover with 50k error - from Vladivostok, generally addressed to foreign destinations, arranged on pages from a Collection, occasional flaws possible, generally F/VF, Est. $1,200-$1,500, Scott #C20-25, C23a