Magnification of Paul Kahle's signature from the picture shown on right. 
The Imperial Palace, Straßburg, Elsaß-Lothringen, image taken from a photo dated 1890 - 1900.Known as the Palais du Rhin, Strasbourg, Alsace - Lorraine from 1920. "In memory of my service time in Straßburg" 
Ladies in Alsatian national dress, and signed by Paul Kahle, Straßburg 