No name ''S'' wrench

[cgw2also]

  Does anyone out there recognize this wrench & who might have made it? Picked it up a couple of months ago at an estate sale and after trying for a while have not been able to identify it. Any and all help appreciated. TIA.

Still a newbie I guess,

Charlie

[Papaw]

I can't ID that wrench, but some of the spline wrenches were for shafts on small engines . Sherman Klove made some I think.