This won't be the answer you're looking for, but from my own experience and what I've seen on other adjustable sighted Winchester carbines, they tended to stake the right side of the dovetail and not so much the left; not saying it never happened, but it's a definite pattern I've seen. Inland for instance tended to stake the front and back of the right side and once over on the left side (front I think). Again, I've seen some staking that didn't follow any of the patterns I just mentioned that was probably factory original. The only other thing without looking at my CCNL's (at work now) would be the shape of the punch used. Anyway, I hope you find your answer...sounds like an interesting bit of trivia there.