This is a grand rifle and it is very close in many ways to a gun I have. Mine is a smooth gun with a 48 inch, half round, barrel, but the furniture including the butt plate, triggerguard, nose cap and inlays match mine. The profile is similar, too. This gun has a box whereas mine does not, but there is a silver crescent moon inlay on the cheekrest of my gun, along with similar silver forearm inlays. The initials 'f B' are engraved on the top flat amid some other decorative engraving. Some of the furniture is engraved, as well.
For those skilled at research, my gun was posted here a long time ago, and should still be in the archives.
Ray McKnight has seen mine and stated that he regarded it having been made somewhere in North Carolina. I didn't know enough then to ask why he thought so, but I have continued to accept that until more factual information supplants that. A round of standing applause for bringing this to the table.
Dick