Scusi, I don't know what it is, nor who owned it. "I.M.G. 82" on 19th of June 2004 in Duisburg-Wannheim. The plate above the "I.M.G" tells something about Klöckner. But it is not clear if it means the producer (the well known "Klöckner Humboldt Deutz") or the former owner (Klöckner was a steel producer, after a bankrupt it is actually only a steel-dealer company, but both in Duisburg).
Special thanks and greetings to the guard of Metallhütte, who allowed to take this picture.

Photo by Arnim v. Herff (arnimvherff@uni-duisburg.de)