Saw an old pull type (don't know if designed for horses or tractor, or converted) road grader the other day. It was a strange feeling; kinda looking at an old pull-type combine. They used that stuff when I was a kid, but when I was old enough to help on the farm, nobody (well, almost nobody) used pull-type combines any more. I do recall seeing an actual threshing machine in operation, back, oh, about 1949, on a farm in SW Missouri. They don't grow much wheat in that part of the country, but this was an actual operation, not a demonstration. Having watched the combines in operation in Oklahoma, it seemed like a lot of work to shock the bundles, let them dry, load them on a trailer with pitchforks, haul them to the thresher and pitch them off with pitchforks.
Sorry... got carried away.
Caterpillar or Adams No. 8 ?