A rare 1931 Citroën Kégresse half-track example that was carefully restored to its original condition and is in working, driving order has come up for sale, and it's ready to offer its new owner ...

Ironically enough, the U.S. Army had acquired a half-track (wheels in the front, tank treads in the back) vehicle, the Model P17, from the French in 1931 as part of research and development.