Lot 60615 – 1923-1939 Selection of airmail values and sets onl

1923-1939 Selection of airmail values and sets only, mostly mint hinge remainder, including many of the better sets, noted Stratosphere never hinged & used, Chelyuskin Rescue mint hinge remainder & used, 1934 Airships mint hinge remainder and used, 1931 North Pole Zeppelin imperf and perf., etc, high cat.-value but all tropical toning otherwise mostly very fine