Resurrecting this old thread . . .
The gun in question (shown in the original photos, which are no longer accessible due to me walking away from my Photobucket account many years ago) was sent to Gunter Pfrommer for repair of the cocking sear of the lower barrel.
Gunter tore the gun down and noticed the hooks. He said those hooks are an extra safety feature added to some Winchester 101s. The feature is to prevent the gun from firing when the barrels are pointing down. The idea being to keep one from shooting off his foot.
After over 15 years we finally the answer to the question.
—Shinbone
You know, it’s a funny thing, but, if I open a gun, load it, close it, disengage the safety, and pull the trigger, I have an expectation that the damn thing will go off for me.
Anything after pulling the trigger, I always figured was on me.
Best,
Ted