6 may 2007 - Wien (AT) – tramway museum, Erdberg. Wien has so many work trams that they are divided into Types – this snowplough was a Type G machine. It began life in 1901 as a passenger tram built by Grazer Waggonfabrik and was rebuilt in 1958 by Graf und Stift into the form shown here. Wien (AT) – tramway museum, Erdberg. Wien has so many work trams that they are divided into Types – this snowplough was a Type G machine. It began life in 1901 as a passenger tram built by Grazer Waggonfabrik and was rebuilt in 1958 by Graf und Stift into the form shown here. Author: dvigar