Lot
2987 
Airmail Covers, 1923-1937, including 1923 registered Shanghai to Philadelphia, 1924 Trans-Polar Flight Norway to Washington, D.C. dual franking; 1928 Zeppelin "First Flight Air Mail", London to Douglas, Arizona; 1934 Byrd Antarctic Expedition purple "Posted on the High Seas", 1935 Byrd "Little America" cancel on Byrd souvenir sheet; 1937 Pan Am "Clipper" Hong Kong to San Francisco nice cachet. Estimate $75 - 100.
Realized: $125