(http://i467.photobucket.com/albums/rr40/plantshepherdplus/DSC_0085-1.jpg)
This came out of the Greenbrier Alabama Blacksmith shop. Both jaws move in opposite directions.
I guess for holding a piece of plate or beam while welding?
I would think it could be an assembly clamp or a clamp for bending somthing after it comes out of the forge
Hanging on the wall like that, I would use it to hang an iron tire for a wood wagon wheel, for measuring, but not sure the why of the vise part.