Poster from the 1894 World Expo, featuring the "Castle in the Air." Image shows a chateau being held aloft by a large tethered balloon over the fair. The tethering demonstrated is known as the Tobiansky system. A German flag flies from the top of the balloon. 'La reproduction commerciale de la gravure est interdite. Brevêté en Belgique et à l'étranger. Pour toute concession, s'adresser rue des Comédiens, 41, Bruxelles. Photo-litho, Arts graphiques, Bruxelles.' Created by Vanessa Nagengast Date Created 04/29/2015 Source National Air and Space Museum, Smithsonian Institution. Keywords Art Rights and Restrictions Not determined
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