1926, First flight from Cheyenne, May 31, on Cheyenne-Pueblo route, franked with 553,554,619 & C7, slightly oversized cover (Image)

Est. 25

1928, Graf Zepp Flight, LZ 127 airship, on UX27, 1¢ green postal card with added postage, from Lakehurst, NY to Frankfort, Germany, faint flight cachet on front, BS Friedrichshafen 1 Nov 28 on reverse (Image)

Est. 40

1928, Lindberg Again Flies the Airmail, horseshoe cachet, Saint Louis, MO Feb 20 cancel, on airmail cover to Woodfords, Maine, Hussman Stamp Co label with picture of Lindberg tied to reverse (Image)

Est. 40

1934, First Day of new 6¢ rate featurig C19, 6¢ orange winged globe stamp, from Baltimore, July 1, red & blue Washington Stamp Exchange cachet, addr to Neward, NJ, violet RS cachet on reverse (Image)

Est. 40

1936, Hindenburg first flight , New York May 11, 1936 cancel on coloful mixed franking, paying special delivery fee, addr to Chicago, flight cachet at left, Frankfurt 14-5-36 pictorial cancel on reverse along with two different Chicago cds's (Image)

Est. 100

1940, F.A.M. 19 flight from Canton Island, July 22, 1940, franked with C24, 30¢ blue, to Washington DC (Image)

Est. 30

1948 First Flight on Northrup B-49 "Flying Wing" jet bomber, from Muroc Air Base, Hathorne, Calif Dec 1, to San Francisco & return, signed by Max Stanley, pilot, (Image)

Est. 20

1954, First Flight, New York to Montego Bay, Jamaica on VF cover, with red & blue B.O.A.C. Boeing Strato-cruser cachet at left, & signature of pilot, addr to Roslyn, Long Island, NY (Image)

Est. 35

1959, First Pan American Interconternental Jet Clipper first flight, with four #10 size covers with matching cachets: Seattle to Honolulu, Honolulu to Portland, Portland to Honolulu and Honolulu to Seattle flights, VF

Est. 30

1962, Airmail cover to Calif, with Rockwell Kent corner card, Peace on Earth label with matching red handstamp (Image)

Est. 30

1965, Scarce Mariner IV label in light brown at left on unused New York World's Fair airmail cover, VF (Image)

Est. 30

1971 Air Mail Special Deliver cover from Santa Barbara, Calif May 4, franked with pair of 20¢ #C75 & 45¢ #E22, to Geneva, Switzerland, BS Geneva May 10 (Image)

Est. 35

1983, $9.35 Express Mail on Challenger space flight, three different cancels, multicolored cachet, BS "Returned to Earth Sep 5 1983, Edwards AFB, CA, cds & boxed NASA 25th Anniversary in red & blue , unaddr, VF (Image)

Est. 35