Thank you Mr. Parabola...a very logical explanation for the chambering and the two proof marks and to Dr. Drew for the Damascus pattern. Now about that "18". If the rifle barrel were rechambered for 3 1/4 shortly after purchase and thus reproofed (same proof marks virtually), is there a chance that the shotgun barrel was originally an 18 gauge then bored out to 12 on reproofing?

Still curious about what's in that "square." It could be the post 1887 diamond with 12c in it? I can ask the owner if the shotgun barrel is choked but it would have had "not for ball" in the original proof in 1884 which should survive somewhere. (Unless when rebored from 18 to 12 it were bored with a choke?)

[Linked Image from i.imgur.com]

Last edited by Argo44; 11/05/22 11:16 PM.
Baluch are not Brahui, Brahui are Baluch