[Christoph from Germany]

In Europe these trailers with these driven one axle / 2 wheels were quite popular in the 50s.
They were like a Swiss pocket knive - mower, tiller, sweeper, snow plow, garden plow and pulling the trailer... all in once.
I remember a video someone was restoring it, turned the open trailer into a camper and made it to the North Cape...

Mit dem Einachser zum Nordkap