That's what I call a good honest-to-goodness well used No4T. And long may it last. And when you find an original bracket I'll go though the process of matching it exactly to the rifle as Armourers across the Commonwealth have been doing for as long as they've been around.

But whatever you do, DO NOT overtighten those allen bolts. If you do, it could be a disaster for the erector cell inside the scope.