MMARKS_131026_237
Existing comment: Charles Lindbergh solo transatlantic flight cover, May 20, 1927:
Lingbergh autographed this piece of unstamped, unofficial mail -- one of only four known pieces carried on his first solo transatlantic flight from New York to Paris, along with six letters of introduction. Due to concerns about the aircraft's weight, carrying additional mail was out of the question on the risky flight.
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