Duewag GT6 No. 615 with the M special service for the Long Night of Museums seen in the Madalinskiego depot, Poznan, Poland, 21.05.2016. This tramcar received its original Rheinbahn Duesseldorf livery in 2011 and it is presently used as a historic tram in Poznan.

Photo by Michal Kozicki (michalmarekkozicki@gmail.com)