Welcome to the forum , shongololo09 .
If you'd please post an image or two of your wagons , and tell us what you know (from serial #'s & tags, etc.) , pehaps we can find some info with/for you .
Depending on the age & condition of your serving wagons , the 'markets' for such items are a bit limited .
Sometimes hotels & catering businesses are interested in such things (if you're talking about the type of item I think you are) , though .
