San Antonio, TX First Flight Cover U.S. to Mexico Airmail 1928

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San Antonio, TX First Flight Cover U.S. to Mexico Airmail 1928:
$3.99

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First flight United States to Mexico airmail cover, 1928. Cancelled on the back at Laredo and Kansas City. Opened at top otherwise good condition.

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San Antonio, TX First Flight Cover U.S. to Mexico Airmail 1928:
$3.99