F grade Remingtons have been around certainly since the 1930s and maybe earlier, have to ask a Rem collector. Have seen a few 8s, 81s, 14s, 141s - I never look at shotguns but no doubt there were more than rifles. Wood was always gorgeous but engraving never impressed me, although some were pretty good. I am sure the Rem collectors know chapter and verse about who the factory engravers were but I don't recall reading anything about them. B grade Remingtons, IMO, with pretty wood and checkering, were usually very nice. I remember owning a 722B that was a honey. As you ran up the letter grades they became more and more flamboyant and, to me, less attractive.