Okay, here's my guess. Somewhere in the dim recesses of what's left of my memory I think I saw a binder/harvester that had those sheets on it. The harvester was used to cut wheat, oats, etc. and tied bundles, or sheaves, of the entire stalks of cereal grain, which were then dropped off the machine on the ground to be picked up by hand labor and hauled in to the barn.
Cockshult made such a binder, as did most of their competition. All such harvesters fell out of favor quickly when the threshing function was added. They were the forerunners of our modern day grain combines.
They might be quite valuable to old farm equipment restorers and collectors. You can go to YouTube and watch them in action. I just did so.
Best, SRH
It appears Miller beat me to the draw. Maybe we are both right.
Last edited by Stan; 03/24/20 05:53 PM.