BLS locomotive Ae 4/4 # 251, now operated by association Extrazug.ch in Langnau and based in Burgdorf, is shoved by a road/track Unimog vehicle into the hall 1012 of the former SLM (Swiss Locomotive and Machine Works) on the occasion of the exhibition celebrating 750 years town privilege of Winterthur. In the background electric railcar BFe 4/4 # 1643 of SBB Historic.
