The Williams Afghan Media Project has a picture in the Louis and Nancy Hatch Dupree collection of slides which shows narrow gauge coal mine wagons after delivery to Afghanistan.
The caption says
These coal cars are from Czechoslavakia and are waiting for locomobile installation. The photo was taken at Pul-i-Khumri and is dated 10/1959.
The end of one wagon is marked, in English “made in Czechoslovakia”, while the ends of others say “Karkar” and writing I can’t quite read, but which may include “Afghanistan via Termez”(?). The wagons also have numbers, if anyone is into extreme wagon spotting…
There is also a photo captioned
There are Coal Union lorries coming from Karkar on the right side, taken at
Doab to Pul-I-Khumree in 1959.
More details of the Afghan coal mine railways.