Amundsen and Ellsworth Our Polar Flight, Dodd, Mead & Co., 1925, first edition, fine in scarce d/jkt; Umberto Nobile My Polar Flights, Muller, 1961, first edition, in d/jkt, near fine; and two related, plus another on airships. All in d/jkts, the jacket of the Amundsen with peripheral faults and faded. (5)