Timpo made many interesting items including the railroad hand cart. The figure can vary that is on the cart. A small box set has it pictured with a first version cowboy clubbing and mounted cowboy. I have seen the cart with a third version Timpo cowboy. Timpo did Western trains, but the hand cart is not wide enough to use on the tracks.
Timpo did various versions of the cowboys they sold. The first version were a chisel face, while later figures have a more realistic looking. These later figures can get expensive if you have a rare pose or unusual color variation. If you would like to know more then go to web site below Timpo artist where you can see the various versions of the cowboys and the conversions that can be done. The site is in German so you will have to translate the information.