The HD-10 was a fairly popular machine in its time.
Photos follow here on three different ones.
The first one is a restored model that I found and photographed sitting on a truck in Gaston, Oregon in the summer of 1998. This machine appears to be equipped with a Carco winch and an angle blade. There seems to be both hydraulics and cable on the front. I didn't walk up to the machine to see just what it did. In the past it was not all that unusual to see a hydraulic tilt blade with a cable lift, but I am not sure what I am looking at here.