"Pommesbude" is the nick-name of locos in this style here in the Ruhr-area. It means a snack bar where you get "Currywurst mit Pommes" (sausage with curry-ketchup and french-fries) a traditionally fast-food here, comparable to fish'n'chips in GB.
Eisenbahn + Häfen 731 on 15th of June 2003 in Duisburg-Kasslerfeld. A special "Thank you" to Frank Seebach for the hint (A good starting point to see his pictures is: http://www.railfan.de/nebahn/galleries/ruhr2.html. No, there is no relationship: I knew of this page and met him the first time at this day near a fence of Thyssen...).
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Photo by Arnim v. Herff (arnimvherff@uni-duisburg.de)