I do not know what this tool is for. Can anyone here help me identify it?
Model A valve guide tool.
Valve guide remover for A and B.
Model A Ford valve guide remover?
Definitely A or B valve guide remover. Take the valve springs loose/removed, lift the valve up, and this tool goes against the valve stem, the offset part goes around the valve head. You can then tap the guides out (they are two-piece guides due to the mushroomed end of the A & T valve stem. That one is an aftermarket one, were common in the 1870s-1990s, might still be made.
Ah, make that 1970s, not 1870s!! Ooops. . .