050 560-2, southbound Horb - Rottweil train, 4th May 1970
The main line south from Horb along the Neckar valley was originally double track, but much of it was singled during a wartime scrap drive, so trains generally pass at stations or loops, as here. A northbound local passenger train is waiting in the loop with a Class 211 diesel at its head as 050 560-2 heads south non-stop through the loop. I'm not sure of the exact location... Monday 4th May 1970. Slide No. 4839.