A push-pull mixed German/Swiss measuring track train with SBB-Cargo locomotives at the end of the train. The yellow cars are owned by Deutsche Bahn, the SBB one are white colored.
Re 421 # 391 is pulling a parcel mail train to Härkingen on the Jura south foot line between Wangen an der Aare and Niederbipp.
SBB Cargo 421 391 & 420 186 haul a train loaden with organic sugar beets determined for sugar refinery at Frauenfeld.