Airmail, 1930, 65¢ Graf Zeppelin, two singles. In combination with 1927, 10¢ Special Delivery pair + 5¢ dark blue on legal sized Special Delivery flight cover to Austria, all tied by "Brooklyn, N.Y., May 31, 1930" duplex postmarks, red German and purple U.S. flight cachets; cover file fold and minor edge wear, otherwise Very Fine. Scott No. C13+E15+637  Estimate $200 - 300. $0 (Image)