Worldwide Rare Stamps and Postal History
Lot 10:
EARLE L. OVINGTON (1879-1936), American aeronautical engineer, aviator and inventor, piloted the first official airmail flight in the United States in a Bleriot XI on September 23, 1911, signature and personal violet cachet on an air mail cover of 1932, mounted in a booklet with photos and profuse description, VF
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