This looks like a wood saw with comically over-sized teeth. It’s used to cut hay bales. The teeth make sense because a bale of hay is a lot like a piece of wood with comically oversized grain fibers. Just as in wood, cutting a strand of hay is much harder than separating it from its neighbor, so to “cross cut” hay you want a tool with knife-like teeth to cut the strands.
Location: Shelf 45
Have you used this tool? Think my description is all wrong? Have a better example? Comment now with any thoughts you have about this tool!