It looks like some sort of smasher. The metal strip looks as though it gives a spring loaded action downwards. I wonder if the top is parallel to the bottom for a reason. The nut just on top of the metal strip looks as though it was made to turn.
Hmmm, the size of the lag on the end, where it screws into something, suggests it could hold a bit of weight.
Hmmm, the size of the lag on the end, where it screws into something, suggests it could hold a bit of weight.
Hmmmmm......