Raab-Katzenstein KI 1 biplane, 1920s, (1932). The The Raab-Katzenstein KL.1 Schwalbe ('Swallow'), German aircraft used for aerobatic displays, with 80 horse power air-cooled Siemens engine. From "Die Eroberung Der Luft", (The Conquest of the Air), cigarette card album produced by the Garb?ty cigarette factory, 1932. Eugene and Moritz Garb?ty, who were Jewish, were driven out of business by the Nazis in the late 1930s, and forced to sell their factory which lay empty for over 70 years. [Garbaty Cigarettenfabrik, Berlin-Pankow, 1932]