The trap appears to be #4 sized and has tabs on the top and underneath of the jaw in a constant pattern. It also has a figure 8 chain. I apologize for the poor pics.

Without the pan sometimes it's difficult to tell what they are, but with the parts that you have left it appears to me that it is a #4 Newhouse or possibly a Hawley & Norton, both made by Oneida Community around 1890's, if there is stamping on the springs it would probably be Newhouse, Hawley & Norton didn't have names stamped on the springs. The pins in the top of the jaws were probably nails that were added for teeth and were probably broken off a long time ago. Again, in my opinion.

They appear to be casted that way. They are in an exact pattern both on top and underneath the jaws. I wish I had a better picture of the outside ones.

My first guess was a Hawley too.