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Postcard depicting the Blériot monoplane, type « English Channel Crossing », assembled by Alfred Leblanc, with printed technical specifications: wingspan 16 m, length 7 m, wing area 15 m², Gnôme 50 HP engine, integrated propeller of 2 m 10 in diameter rotating at 1700 revolutions, weight 239 kg. On the back, publisher J. Hauser, phot.édit., Paris, and space for correspondence. Handwritten signature of Alfred Leblanc visible at the top right of the front.