31. He studied air mail stamps and postal history, and wrote extensively on the subject. 32. The " Maiden Detroit " entered Contract Air Mail service on February 15, 1926. 33. A special stamp was issued to commemorate the event, and air mail delivery was announced. 34. It is captured in boxes of yellowed air mail tucked into the quiet of closets. 35. The flying boats also carried out air mail deliveries. 36. The aircraft flew from Detroit to Cleveland with the first commercial transport of air mail . 37. His airmail business was in the middle of the Air Mail scandal of the 1930s. 38. Foulois served as Chief of the Air Corps during the Air Mail scandal of 1934. 39. He brought with him the first piece of air mail ever delivered to Fort Worth. 40. Lindbergh used his fame to promote air mail service.
