Keywords: 1917 06 schaeferke.jpg en The Postkartenvertrieb W Sanke in Berlin published a series of about 600-700 numbered postcards showing World War I era aviators from about 1910 to 1918 1918 /20 when he went out of business On some of these postcards the photographers are identified such as Fritz Fischer Nicola Perscheid 1864 - 1930 or Alfred Krauth http //www frontflieger de/ricma/1917_06_schaeferke jpg Fritz Fischer Nicola Perscheid 1864 - 1930 or Alfred Krauth 1917 PD-old Emil Schäfer Jagdstaffel Richthofen Jagdstaffel 11 Aviators from Germany Military peaked caps of Germany Uniforms of the German imperial army of World War I |