Book Wuppertal Tram Under the Contact Wire by Horst Cappel Top book, good, used copy! A book by the Wuppertaler Stadtwerke WSW, Ed.: Wuppertaler Stadtwerke WSW - very informative book with lots of photos, condition: good, slightly rubbed on the outside, corners possibly slightly bumped, we are listing many more, including EK books, on eBay at different times - as of 03/2021, - -.