Red, I wasn't referring to the pin ends but to what on my screen looked like a shiny screw in the center of the plaque. If it's has a raised center I agree it's a cocking indicator, and probably original to the gun. Still, unless you can identify the previous owner I think the personalization will be more a detraction to the value than a benefit.
I used to love being able to hit hard at 1000 yards. As I get older I find hitting a mini ram at 200 yards with the 22 oddly more satisfying.