Long shot here. Sorry. No picture.
I have long been trying to identify a farm wrench that looks like it might be related to the third from the left.
Like yours, it has a rib running down the center and each opening is reinforced with that same connecting rib.
It has one larger opening on the top end and two smaller ones on the other.
Like yours, mine has no identification at all.
The difference is that mine has a small hammerhead built onto the 7/8" top end.
Mine has a 1/2" box opening between the two lower openings (
And it has a gooseneck extending from the bottom, curving to one side, with a 1/2" opening on it.
I have looked high and low, but with no luck. Any ideas?