Prototype: Pair of type KK 15 gondolas with hinged hatches, permanently coupled together, used as a railroad maintenance vehicle. Painted and lettered for Era III.
Model: Both cars have rail cleaning equipment mounted on them. Each car has a vertically movable metal block with cleaning surfaces made of polishing felt installed parallel to one another. The cleaning surfaces can be removed and washed. The hinged hatches on the cars can be opened. The cars have close couplers with a guide mechanism. The two car cars connected by a plug-in coupling.
Length over the buffers 15.3 cm / 6".
This protective cleaning process can also be used for nickel silver or brass rails.