It looks like a decent mechanical design, Bob, but fairly complicated. Having the horizontal crankshaft seems to require two extra pairs of idler pulleys to redirect the two belts, but it does make the cutter clutch and its operating mechanism easily accessible without having to remove the cutting deck. The wheel drive clutches were already fairly accessible, as on all Greenfield designs I've seen. I think you'd need to spend a fair amount of time with an oil can though, to keep the whole thing operating smoothly over the long haul. Kind of like old British machinery, but more rugged. So far, I like it. If you end up owning one in proper working condition, a series of pictures and mechanical explanations would make a very interesting archival thread. Have you made any progress toward finding out the model name and number, plus year of manufacture?