1930 Caterpillar 20 Crawler, s/n PL5190. This was a good running unit with new undercarriage a few years ago, and then set up as a display piece. All complete and original. Engine is loose. Steering clutches work. It will run again with some mag and carb work. $3,500. Located in Duluth, MN. I can email more photos. Call 218-428-3200.