U. writes...
Grandpa Karl worked as a locomotive fitter for the German State Railway until 1. April 1941 , then he had to move to the army.
Till end of war in 1945 , he worked at the " Atlantikwall " in Belgium and France and drove trains at different places in Europe .
Due to his profession, he got his certificate of discharge in June 1945 and than he started to work for/with the 740th railway op bat. at Bonn /Germany , where a railhead was build. The permit on the photo is from this time.
Later , till he retired in the late sixties, he still worked in repairing ( steam ) locomotives for the new build German State railway in Cologne.Thanks U glad to see Grabdpa Karl's IS card