Lot
682 
Germany, Zeppelin, America Flight, 1928, Zeppelin photo card with red on-board "Graf Zeppelin" cachet of October 11, 1928, dropped unfranked and marked postage due at Basel with blue "Basel/Kreis-Post-Dir/11. X. 28" c.d.s., message expresses thanks to an official of the Zeppelin Factory at Friedrichshafen for courtesies extended to the writer, it is signed by Lt. Cmdr. C.E. Rosendahl who was a survivor of the Shenandoah crash, Very Fine and scarce (Sieger #21c). Estimate $300 - 400.
Realized: $550