Battery-powered trolleybuses in Switzerland, ten vehicles towards Fribourg
Trolleybuses in Bern - Wikipedia
Lausanne starts double-articulated trolleybus operation - Urban Transport Magazine
Zurich, Switzerland - June 30, 2018: a Hess trolleybus passing along Bahnhofbrucke bridge, Central square in the background. Hess is a brand of the He Stock Photo - Alamy