Can you tell me anything about it? Found it in my brother-in-laws barn. No markings on the pan other than Oneida Jump.

Not factory. Looks like a trapper mod or repair. The serrated jaw looks like it came out of a European trap.

Thanks for the reply.

I saw something identical except it was a longspring.An old timer had modified it to use for beaver.

And what I find really strange is he had installed the same type of jaws.The profile of one has higher than the other,and the lower one was serrated.Why I remember it so well was he saw some No.5 Bridgers in the bed of my pickup and made fun of them,saying they looked expensive and were too big.Then he pulled out his Frankenstein trap.I didn't know what to say without being disrespectful to the ole boy.