Auction 265th - 273rd - Day 3

1930/39: Group 18 covers/cards of interesting flights, incl. two Zeppelin usages as1930 Polarflight from Amsterdam to Leningrad, 1930 flight to Darmstadt with a card sent from Vienna (5.VIII.30) Sieger 76, 1933 Robert Kornfeld's Glider flight from Vienna with one to Budapest (1) and two items to Zurich 1935 First flight Prague - Zurich (15.V.) as well as the compl. set of 10 diff. legs of 1937 Balaton Air Rally, Hungary. Fine.