1932 (March) Zeppelin 1st South America Flight, 50h pictorial postal card with 15K total franking tied at Prague on March 19 (with boxed airmail ds on back), Berlin connecting flight and S.A. flight cachets, bs at Recife on March 23, highly attractive, very fine and scarce (Sieger 138 B, € 450) (Image)

1933 (Oct.) Zeppelin Chicago Flight pc with 13.50Kc total franking (incl. 10Kc airmail; 50h bent over top of card) tied at Prague (Oct. 7), sent to Rio with superb Berlin connecting flight cachet (also bs Oct. 14), Prague transit on reverse (Oct. 8) and Rio final bs (Oct. 18), very fine (except as noted) (Sieger 238 E, € 400) (Image)

1936 (May) Zeppelin Hindenburg 1st North America Flight, 20Kr airmail tied by Vrchlabi / Hohenelbe cds (May 2) to reg’d cover to USA, cachet with code c (Frankfurt) and with bs of Prague (May 3) and NY (May 9) plus final (Minneapolis area, May 12 & 13), unusual commercial mail, fine (Sieger 406, € 200+) (Image)