Thanks for your replies all, especially Rick!
More pics and thoughts/comments:
My hope is to recondition, rebuild, and replace what's needed to get it back to operable, firing condition, as it was originally. I don't hunt, but do enjoy shooting at paper targets, and don't really anticipate firing it all that much anyway. But just like aircraft are meant to be flown, guns are meant to be fired, and I like to see them used for their intended purpose, not hanging on a wall to just be seen. Of course there are exceptions, but this isn't one of those.
Lock: Though still pretty dirty and gunked up, I have cocked the lock mechanism (quite a bit of force needed to do so) and the action works, with very little force needed to fire. The 1/2” long idler arm connecting pan cover to the lock base plate is secure, but has a very loose fit where it’s pinned to the cover. I’ve backed out most every screw a ~ 1/4 turn to verify they can be, but the mainspring screw and the 2 screws that attach frizzen spring will not budge. I’m planning to get some Kroil and hope that will do the trick. I’ll replace any or all the screws, assuming I can get the right ones.
Bands: From breech to muzzle, there is 1 very wide decorated band, 6 wide bands, and 1 narrow band, though a couple marks at the muzzle end of the stock indicate to me there was 1 more narrow band there originally. The 1 very wide decorated band and the 3rd wide band are split at the seam, were taped to keep them in place, and need replaced.
Stock: The butt stock is in reasonable shape, though there are knots, dings and surface defects I attribute to inferior wood used. The mid stock from the trigger, breech, and lock areas to the wide decorated band is not so good, IMO, with several cracks and general deterioration. The fore stock is just OK, and is separate from the aft; the 4th wide band covers a ~1/16” gap between the two pieces. The ramrod is very rigidly in place; I will try to extract it as described, but I suspect the bands and barrel will need to be removed to get it free. I’m thinking it might be best to just replace the entire stock.
Barrel: Other than external dirt and superficial rust inside the bore, the barrel seems to be in pretty good shape. I’ve run a 1/4” dowel the barrel and blown it out through the touch hole. There’s no charge there, just dirt and rust that a thorough bore cleaning should remove. I’m not sure what the caliber is, but the muzzle is flared externally and coned internally (I think that is the terminology).
-Bob