Antique Grizzley Trap

Collectors, You'll know more about the trap than I do. Good condition. I will pay up to $10 of shipping cost. Added photos. Trap is marked "Grizzley Bear No. 6 Pat. 1856. On the jaw legs at the hinge is cast "SCF" and another number that I can't read. The jaw diameter is 15 1/2" at the hinge, estimated 18" open (no way I'm going to make a actual measurement.