First flight air mail cover addressed to Bill Boeing, Jr., Pasadena, California, from William E. Boeing, May 3, 1938.Stamped cachet: "United States Air Mail - Juneau-Fairbanks - First Flight."
First flight air mail cover addressed to Bill Boeing, Jr., Honolulu, Hawaii, May 28, 1937.Stamped cachet: "Primeiro Voo – Correio - Transpacific - Macau-USA."
First flight air mail cover addressed to Bill Boeing, Jr., Claremont, California, from William E. Boeing, June 20, 1940.Stamped cachet: "First Flight F.A.M. 20. Seattle, Washington. U.S. Air Mail."
Demonstration flight air mail cover addressed to William E. Boeing, Seattle, Washington, from the Douglas Aircraft Company, Santa Monica, California, October 1, 1946.Stamped cachet: "Demonstration flight - Flying Post Office - En route - Los Angeles…
Commemorative letter honoring the 25th anniversary of Glenn L. Martin's record-making flight from Newport Bay, California to Avalon, Catalina Island, then the longest over-water flight in aviation history, May 10, 1937. One typed page on Glenn L.…
Commemorative air mail cover addressed to Bill Boeing, Jr., Seattle, Washington, from William E. Boeing, May 19, 1938.Stamped cachet: "20th anniversary of the inauguration of regular air mail service - First National Air Mail Week - May 15-21, 1938 -…
Cacheted philatelic cover commemorating the STS-61-C mission, postmarked January 12, 1986. Features the STS-61-C mission insignia depicting the Space Shuttle Columbia. Includes an accompanying notecard with information on the Columbia's maiden voyage…
Cacheted philatelic cover commemorating the STS-56 mission, postmarked April 8, 1993. Features the STS-56 mission insignia depicting the Space Shuttle Discovery. Includes an accompanying notecard with information on NASA's Shuttle fleet.
Cacheted philatelic cover commemorating the STS-55 (D-2) mission, postmarked April 26, 1993. Features the STS-55 mission insignia depicting the Space Shuttle Columbia. Includes an accompanying notecard with information on NASA's Shuttle fleet.
Cacheted philatelic cover commemorating the STS-51-G mission, postmarked June 17, 1985. Features the STS-51-G mission insignia depicting the Space Shuttle Discovery. Includes an accompanying notecard with information about the Space Shuttle.