I was hoping to see if anyone knew why, and how the frames on some older Armi San Paolo guns were finished so that they turned out a reddish, almost plum-maroon color. The reason? My New Model Army replica has a burr that never got removed, and needs a little cleaning up to give both the loading lever, and cylinder pin better clearance. Unfortunately, I do like the original finish, so I was hoping that somebody might know how to replicate it once metal has been removed. I do know that Birchwood Casey has their plum brown finishing solution, but that ends up much more brown, and less red-purple. Thanks!