1 millionth leg vise ID question

[MendoH2o]

I recently helped a neighbor out and as a gift she gave me this leg vise that was in her barn when she purchased it from the original family. It was heavily covered with loose flakey rust in spite of it being stored inside. So after reading this fine forum for hours and hours, I decided to use my power washer sandblaster attachment and clean it up. The screw is in decent shape and aside from the ears on leg having a little twist (they are not square with the jaw) and the pivot pins missing nut (stripped threads from antiquity so nut is missing) it seems to be complete. 
There is some mushrooming of the mating surfaces of the screw parts so I’m fairly confident the parts are original. 
The only markings I can find are an upper case T in the center of both jaws. I’m a practical person. If I have a tool, I intend to use it. If this is something with a high value, I’d rather get it to someone that will appreciate it. Otherwise I intend to mount it to an I beam stand, give it a coat of wax or Penetrol and use it as God intended. 
I appreciate any and all input. 
The jaws are 5” wide and open to about 5-1/2”.

[ThomasPowers]

In my 40+ years of experience most leg vises are not marked as to the maker.   The 1's are obviously to indicate which parts go together.

[TWISTEDWILLOW]

It the mounting bracket an screw box look like a Peter Wright to me,

I’ve seen a lot of PW post vises that use that same bracket,

that bein said over the last hundred years a lot of post vises have been cobbled together using parts from two or three to make one, and Sears sold spare parts, so there’s no guarantee that even a marked one is all original,

as far as it’s value it’s probably worth a lot more out your way then here in Oklahoma but I say keep it and use it!

[ThomasPowers]

It's an old tool; not a collectable or antique or museum piece!  Use it as it was meant to be used and let it fulfill it's destiny.