Brian,
Way back... When I was a young lad.
The second double gun I used, was my late uncles Hunter Arms 16ga., about the same vintage as yours. That was when the 16ga. became my favorite gauge to use.
Had to give the gun back to my cousin, for her kids. They never used it, and gawd knows what happened to it as they moved to Cali.
I still have many high and low brass paper shells that were given to me when I used the gun. I always put a few low brass papers, in my hunting coat when I use the 1935, Model 12, 16ga. mod. for upland birds. The gun likes them, and the birds do not.
Nothing beats the smell of a fresh fired paper shotgun shell IMO.
May you enjoy many years with your "new", old timer.
Best regards
Vince