On the Montafonerline an electric loc from 1927 pulls every day a heavy train to the ÖBB-station in Bludenz.
On the Montafor line, some trains are assured with ÖBB-railcars.
Here you see an non-renovated ChS4; on the next three pics of me (n° 191869 - 191867 - 191865) you can see the renovated version of the same loco.
In picture 191870 you can see a non-renovated version of this class ChS4.
This Spartanic electric material is really typic for the electric lines in all formar Russian countries.