Zeppelin Flights. 1924 (October 12-15), two Airship Z.R.3 First Flight covers from Germany to NYC, franked by four or one Pigeon stamps tied by Friedrichshafen ''15.SEP.24'' ds with additional ''10.OCT.24'' postmark, different types of ''Mit Luftpost'' labels, both with red boxed ''flight details'' on reverse, VF, Est. $250-$300 (Image)

Zeppelin Flights. SELECTION OF 6 POSTCARDS: 1929-32, Around the World Flight Friedrichshafen - Tokyo (1929), Kassel Flight (1930), Egypt Flight (1931), Lausanne Flight (1931), 1st SAF of 1931, Danzig Flight (1932), nice quality, mostly VF, Sieger #30Aa, 82Af, 104b, 123B, 124Cb, 169Bb, €415 without a premium for franking, Est. $250-$300 (Image)