Just Another, "What is it?"

[Youngguns]

OK, c'mon GJTT, I know it'll be easy. I'm thinking some sort of cable crimping/cutting tool?

 

[ddawg16]

Large wire cutter.

 

[M_George]

I think it might be a tool for tire chains.

 

[gungatim]

Hog ring pliers? how big are they (scale?) they don't look strong enough to cut cable...

 

[Youngguns]

That is a terrible scale, huh? They're probably about 18" long or so. They're definitely not one-handed pliers.

 

[Youngguns]

I think it might be a tool for tire chains.

I think you might be the winner:
http://www.ebay.com/itm/ANTIQUE-WEED-STURDY-PLIERS-TIRE-CHAIN-PLIERS-/152507202128