Lot
1760 
1931, Wilkins-Ellsworth Trans-Arctic Submarine Expedition, 4 different covers of each leg of trip including "New York to London", "New York-North Pole", "New York to Bergen" and "New York to Spitzbergen, all with purple Expedition cachet and typical dual franking for mail associated with the Expedition; first two with U.S. & Great Britain franking and other two with U.S. & Norway franking, a Very Fine set. Estimate $200 - 300.
Realized: $180