Got the gun today and wanted to provide an update and some additional information for those who have been kind enough to reply so far.
First the good:
1.The gun arrived in one piece with no big surprises upon opening the box.
2. Everything functions very nicely.
3. The bore is excellent.
4. Seller shipped an old 31 cal bullet mold with the gun (pic attached)
The not so good:
1. Can't find any additional markings on the barrel or elsewhere to help ID the origin of the gun.
2. Gun has definitely been "cleaned up". All metal parts including furniture, inlays and the barrel have been "polished".
3. Nipple looks to me to be a fairly modern replacement.
The barrel actually measures 36 inches from muzzle to tange. The bore is a slightly larger diameter at the muzzle and decreases to 31 cal about 1 inch into the bore. The barrel is .908 inches wide and the breech and .872 at the bore.
I've attached a couple more pictures to show some parts of the gun not shown in the original post.
I do have some additional questions.
1. The gun doesn't have a ramrod. I'd like to come up with one that would look right and be appropriate for the gun. Any thoughts.
2. I'd like to shoot the gun. My assessment of the gun based on the fact that it is in good condition and perhaps not particularly "collectable" is that it would be fine to carefully shoot the gun using light loads. Does this sound reasonable?
3. As the gun has already been "cleaned up" would it be unreasonable to take steps to try to get the gun (particularly the barrel) looking "right" again? If so, what could be done to get some patina back.
I realize that the third question can be a can of worms. I definitely don't want to mess with the gun if it is of "collectable" quality. I'm still not clear if this gun qualifies as a collector, a shooter, or somewhere in between.
Thanks for all the information you guys have provided. This is my first old percussion rifle and I'm afraid I may be addicted. I've been collecting old colt and winchester for a while (even have a nice 1849 colt pocket pistol in 31 cal to go with this rifle). Anybody got a nice flintlock for sale!