Apart from trackage certainly rolling stock belongs to the Plettenberger Kleinbahn topic, especially the typical Rollwagen, which served to carry standard gauge cars on the narrow gauge line.
The prototype was made by a small engineering company Boecker & Volkenborn from Hohenlimburg. If you're interested in technical details and willing to use google translate, please read here at buntbahn:
http://www.buntbahn.de/modellbau/viewtopic.php?t=11487.
Sammlung Wolf Dietrich Groote
Sammlung Wolf Dietrich Groote
Sammlung Gerhard MollSome of those wagons have been delivered to Plettenberg, the last ones around 1959. By chance we got the opportunity to search the then still existing archive of the company for drawings of the wagons which came insolvent some ten years ago. This was looking for a needle in a haystack for there were more than 40.000 drawings to be searched - without any catalogue or index.
The few reference points were some drawings' numbers from the former Hohenlimburger Kleinbahn's archive. Three times we went there and we were able to find out drawings of five consignments - and save them from ruin. Unfortunately the complete drawings' stock has been wasted meanwhile for no museum or industrial archive was willing to take it.
Fortunately we found a complete set of drawings for one riveted Rollwagen, which was delivered to the Plettenberger Kleinbahn in 1927. I don't want to keep this pic of our search from you:

It surely would be easily possible to build this wagon as a model, but I'm more interested in one of the last to PKB delivered, welded cars. Unfortunately we didn't manage to find drawings of the 8.7 m long cars, which are recognizable on some pictures - like this one of a little mishap:
Sammlung Albrecht KühneMaybe a metalworking shop in Plettenberg and the Kleinbahn itself built those cars using some parts of Boecker & Volkenborn. They got numbers 26 and 28. Perhaps the full order books may have helped, but it was a too high health risk to check them.

So I had to develop the welded car from the pictures and some features of the older drawings. My claim is the consequent implementation to scale - including wheelsets and some special construction characteristics.


Meanwhile the first parts arrived. The solebars are milled from tool steel. All milled parts are made by friends, based on my drawings.

The etched brass number plate is soldered to a notch in the solebar.

Some more parts like a seat, covers and mudguards are etched, too.

The webs of the front-end crossbeams fit to special grooves.


Those are the upper and lower parts of the crossbeams. The buffer duct is going to be a cast brass part.

Some parts for the bogies.


Ball joint for the pivot allowing vertical movement.

Wheel chock holes for the loaded standard gauge wagons.

Cheers,
Volker