1922-78, about 90 mint stamps, 1 souvenir sheet and 4 covers, starting with red Airplane overprint on 45r green and black, including Airships and Dirigibles sets of 1931-32, imperf Ice- Breaker Malygin and Civil Aviation on paper without watermark issues, set and souvenir sheet of Aviation Exhibition of 1937 and many more, fresh quality, some sets with re-distributed gum, but mainly full OG, NH or hinged, F/VF, Est. $800-$1,000 (Image)