Mary found a folding saw buried under a compost heap at Vassar Farms, where it had evidently been for quite a while. It cleaned up surprisingly well:
I made a crude brass shim to stabilize the crude blade in its crudely bent metal frame; the ugly hole came from freehand punching with the rebuilt leather punch tool. Probably spent as much time doing that as they did on the whole rest of the saw: it’s not a high-quality tool.
It could be an older version of the Harbor Freight Folding Saw, minus a fancy plastic-encased joint screw. I added a dot of Loctite to discourage this one from leaping to its doom.
As with the other pruning saws in my collection, that blade scares me just looking at it. I managed to avoid slicing myself open, although I did stab a finger with a sharp brass sliver…