Newspaper clipping, "Hardly in the Spitfire class," from the Saskatoon Star-Phoenix, May 24, 1941. Reports on Harold E. Hartney's flying as a passenger in an early flying machine owned by Glenn Martin.
Letter to William E. Boeing from Glenn L. Martin, June 30, 1924. Discusses the "inauguration of a continuous trans-continental Air Mail Service" and states that "Night and Day Service between New York and San Francisco is the next step." One typed…
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.…
Air mail cover addressed to William E. Boeing, Seattle, Washington, May 20, 1938. Includes a stamped cachet with an image of Glenn L. Martin.Stamped: "Macksburg, IA. Birthplace of Glenn L. Martin (1886-), Designer of Martin Airplanes - Air Mail Week…