Fotowerkstätten Opderbecke Duisburg, LVR-Industriemuseum, Sammlung Ruhrchemie (?) Town panorama of Oberhausen, around 1955 A pit frame from the Concordia coal mine in the centre, in the background to the left the “Gute Hoffnung” (“Good Hope”) ironworks, right the St. Mary Catholic Church Year 1955 Exhibits Photos
