Duisburger Verkehrsgesellschaft (DVG) 1000 on 16th of July 2003 at Duisburger Straße in Duisburg-Hamborn. If I observed it correct it is mainly used as driving-school - shurely at this day, as you see in the direction-panel.
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Photo by Arnim v. Herff (arnimvherff@uni-duisburg.de)