Re 4/4 II # 11109 (Re 420 # 109) in "Swiss-Express" paint scheme with the radio measuring train 97625 running through Walenstadt. The train was running from Würenlos via Killwangen-Zürich Altstetten-Thalwil-Ziegelbrücke-Sargans to Trübbach. In the middle of the train the yellow maesuring car "MEWA 2012" X 60 85 99-90 108-9, rebuilt from a standard car B type IV, in the rear a cab car BDt. The Re 4/4 II # 11109 was built in 1967 by SLM and BBC and is the second oldest of this type in service for the SBB. It got the "Swiss-Express" paint scheme around 1975 for the new push pull trains with standard car type III. In the background are 4 of the Churfirsten mountains, from left the Frümsel (2266 m), Brisi (2277 m), Zuestoll (2234 m) and Schibenstoll (2234 m).