Just got my first Parker 12 gauge.

[Rick Parker]

I recently acquired a Parker 12 gauge Hammer Gun. By looking thru the site I have figured out that the Serial # 8430 tells me that it was manufactured in 1876. She has a Plain Twist barrel, however I cannot find the Grade marking. She is rather plain, no engravings, and steel buttplate. The stock is a little different than those that I have seen pictures of...the neck which is usually capped at the bottom is rounded. One of the hammer screws is mismatched and she has a few dings and hickies on the stock and forearm. The bore seems to be in pretty good shape, a good cleaning would do wonders. Some minor rust on the barrels, which I would love to clean, but have been advised to just oil. Also, there is a small ping on the end of the barrel. I have included a pic of it...what would be the best method of repair for that? Somebody please fill in the gaps and tell me what I have....thanks in advance.