Early Air Mail Biplanes pics 4 [5/8] - New York City postmaster Thomas G. Patten and airmail pilot Lt. Torrey Webb, 1918.jpg (1/1) by Miloch

Early Air Mail Biplanes pics 4 [4/8] - National Air Transport Douglas M-3 Mailplanes at Hadley Field, New Brunswick, NJ on Sept. 1, 1927.png (1/1) by Miloch

Early Air Mail Biplanes pics 4 [3/8] - modified de Havilland airmail plane with number #299, 1920..jpg (1/1) by Miloch

Early Air Mail Biplanes pics 4 [2/8] - Looks like the end of the line for old number 400.png (1/1) by Miloch

Early Air Mail Biplanes pics 4 [1/8] - Loading mail into DH-4 No. 68 with its big Liberty engine.png (1/1) by Miloch

Early Air Mail Biplanes pics 3 [8/8] - Jack Knight became a national hero for his daring role in the first overnight transcontinental air mail service.png (1/1) by Miloch

Early Air Mail Biplanes pics 3 [7/8] - improve the DH-4’s load-carrying ability including the addition of Bellanca lift struts.png (1/1) by Miloch

Early Air Mail Biplanes pics 3 [6/8] - Early U_S Airmail Service Unloading Airmail in Omaha, Nebraska, July 1, 1924.jpg (1/1) by Miloch

Early Air Mail Biplanes pics 3 [5/8] - Early U_S Airmail Service Loading airmail in New Brunswick, New Jersey, 1925.jpg (1/1) by Miloch

Early Air Mail Biplanes pics 3 [4/8] - Early U_S Airmail Service JR-1B mail airplane, 1918..jpg (1/1) by Miloch

Early Air Mail Biplanes pics 3 [3/8] - Early U_S Airmail Service JR-1B mail airplane designed by the Standard Aircraft Corporation, 31 Dec. 1918.jpg (1/1) by Miloch

Early Air Mail Biplanes pics 3 [2/8] - Early U_S Airmail Service Curtis JN-4H airmail plane taking off, 1918.jpg (1/1) by Miloch

Early Air Mail Biplanes pics 3 [1/8] - Early U_S Airmail Service Airmail planes at Omaha, Nebraska, 1924.jpg (1/1) by Miloch

Early Air Mail Biplanes pics 2 [7/7] - Early U_S Airmail Service Airmail planes at Omaha, Nebraska, 1920..jpg (1/1) by Miloch

Early Air Mail Biplanes pics 2 [6/7] - Early U_S Airmail Service Airmail planes at Elko, Nevada, 1920.jpg (1/1) by Miloch

Early Air Mail Biplanes pics 2 [5/7] - Early U_S Airmail Service Airmail plane at Chicago, 31 Dec. 1920.jpg (1/1) by Miloch

Early Air Mail Biplanes pics 2 [4/7] - Early U_S Airmail Service Airmail pilots Edison Mouton and Rexford Levisee, 1921.jpg (1/1) by Miloch

Early Air Mail Biplanes pics 2 [3/7] - Early U_S Airmail Service Airmail pilot William Fillmore, 1925.jpg (1/1) by Miloch

Early Air Mail Biplanes pics 2 [2/7] - Early U_S Airmail Service Airmail pilot Paul Collins and bag of first overnight airmail, July 1, 1925.jpg (1/1) by Miloch

Early Air Mail Biplanes pics 2 [1/7] - Early U_S Airmail Service Airmail pilot Lloyd Bertaud and an unidentified individual, September 6, 1927.jpg (1/1) by Miloch