Oil rig, Al Khafji 10h. bright green and orange, corner marginal block of 6 with the error partly imperf due to a massive paperfold

First Flight Meshed-Teheran 7-3-1925. Cover to the American College with special cachet in violet, very fine

Around the World Flight of 4 US Army Douglas World Cruisers 1924. Postal Stationery to Seattle with the cachet of the first landing in Boston 6-9-1924, very fine

Arctic Flight Point Barrow-Spitsbergen by Hubert Wilkins 1928. Cover to Mexico with the autograph of the aviator and cachet Svalbard Radio, numbered 000071 at reverse, very fine. Hubert Wilkins was born in Australia in 1888. In World War I he joined the Australian Flying Corps and photographed the battlefields in Europe from the air. After the war Wilkins began surveying the Arctic for the Royal Geographical Society. In April and May 1928 he made his famous flight from Alaska to Spitsbergen, thus becaming the first man flying from the New World to the Old. This cover was carried during this flight.