I have book on Belgian FN engraved Browning Auto-5's and Louie Bleus is listed with 90 other master engravers these Browning Auto-5's are nice to engrave make a nice canvas. J.J.
My final polish is 400 grit with wet & dry automotive paper no buffing need to keep all edges sharp and not round and no dishing out of screw and pin holes if you want a final high polish go to 600 grit and lightly buff with Brownell's 555 polish. J.J.
Condolences to the Phillips family on the loss of their Mother..sorry to hear about Ray who I met many years ago at a gun show in PA. I did business with him for many years & he made some wonderful tools.