Had this awhile, hung it up above the bench. Appears to be 2.5 inch track adjustment wrench. Looks just like the ones used on M-48 army tanks, referred to as a little joe wrench.
I must be blind, I'm not seeing any wrench.
Well, pic comes up, but is the wrong one when it posts. Now when I retry the correct pic is gone, scratching head``
I see "little joe" now. I would have said it was a one-off self made wrench.
That's way more better