United States, Airmail, 1933, 50¢ "Chicago" Zeppelin. Group of 9 covers, neat and clean, all with purple flight cachets; Oct 4 1933 cancel also with red triangle cachet and Recife backstamp; 3 covers cancelled Oct 23 1933 Miami, 3 covers with Akron Oct 25 1933 cancels, one on Rice printed cacheted card; and 2 covers with Chicago Oct 26 1933 cancels, Very Fine overall. Scott No. C18  Estimate $500 - 750. $0 (Image)