Very nice gun in great condition. I don't understand why someone would cut that stock. I hope it wasn't just to put the pad on. It kinda drives me nuts that most shooters think a recoil pad is a necessity.
I don't think that "most shooters" think a recoil pad is a "necessity". I see a lot more guns without, than with.
Many vintage guns with recoil pads have had them added because someone else, before them, cut the wood to shorten the LOP. Adding a nice looking rubber pad is a way of restoring shootability to a gun someone ELSE has screwed with, without restocking.