Steam locomotive 85 007, only survivor of its class (not in working condition), under a specially built roof in Bw Freiburg (Breisgau). This tank locomotive was derived from class 44 for a number of short, steep lines in Germany. On the Höllentalbahn (Freiburg - Neustadt (Schwarzwald)) it replaced the old cogwheel locomotives and was in operation until the experimental 50 Hz overhead wires were changed to the standard system and class E44W (145) was introduced. Bw Freiburg (Breisgau), 2003-12-29.