The Hesse Hornet was an air compressor manufactured by the Hess Manufacturing Company in the late 1940s(?). The compressor used a CJ-2A engine to run, but only pistons 1 & 4. The middle two pistons were used to compress air. Keith recently bought one of these and was going to part it out, but changed his mind and now wants to restore it. However, there isn’t much online about it. Below are the links we know about it so far. If you know of any additional info, please add it to the comments.
Here is a link to Keith’s pics: