1935 (2 May) Amelia Earhart Solo Flight from Mexico City to New York, registered and flown cover addressed to George Putnam in New York, personally endorsed and signed "Carried by Air, Mexico, D.F. New York, May 8, 1935, Amelia Earhart", franked with 20c Eagleman overprinted "Amelia Earhart Vuelo de Bueno Voluntad Mexico 1935" and additional 40c adhesive, tied by May 3, 1935 cds, mixed franking with 18c United States postage (tied by Newark May 8, 1935) pmk, additional transit and arrival markings on back, with two Registry seals, v.f. A classic air post flight cover, only 40 (!) carried (Cat No. C74) (Image)

Est.US$10,000