bochum-dahlhausen, the largest railway museum, german society, for railway history, opposite, depot, old plants, fully operational, event, day, guest locomotives, rotterdam, glauchau, db, br65, br 65, departure, dr, br35, br 35, br 23 dr, signal box, signal mast, gleissperrsignal, soft to the touch, chimneys, steam, smoke, cylinder steam, ruhr area, ruhr valley, north rhine westphalia, germany