Lot
299 
(United States) 1930 South America - Pan America Flight, May 18-31, with 1930, 65¢ Graf Zeppelin, block of four (C13), tied on flight cover by centrally struck "New York, Varick Sta., Apr 28, 1930" duplex, appropriate U.S. & German flight cachets, Lakehurst, N.J. green Zeppelin backstamp (5.31), Very Fine and immaculate. Sieger Nos. 64 A Estimate $400 - 600.
Realized: $300