I just picked up my third pair of compound pliers last weekend. One pair is marked P&C and the other two are marked Proto. Same company. So they made some marked Challenger also. Got to keep a eye out for a pair of those now. I just found a extra stamping on the pair i just got. They are also stamped U.S. Maybe a military contract tool. Is that a U.S. stamp on your Camron pliers ?
EvilDr235