1515100 United States Covers Admiral Byrd. South Pole flight. Signed. 1930.

 

South Pole flight - Byrd expedition.  "South Pole Air Mail" cachet" with bold signature of Byrd.  About fifty covers were flown on this hazardous expedition, with only a having been signed by Byrd.  Cancellation S.S City of New York, Feb. 19, 1930.  Outstanding condition.  AAMC 1100.