What do I have here?

[J.Fife]

Rather than starting a new thread I figured I would add a few more questions to this one.

As many have stated, I am really becoming interested in this new Parker I have and Parker's in general. Spending lot's of time reading up on them and looking at others...may have been bitten by a bug. I think I may take edgarspencer's advice and get myself an Xmas gift of a membership.

Couple questions I have;
Any good cleaning tips? What would be the best method to remove the surface rust in the pics....as well as blemishes on the Damascus barrel?

Also, what exactly does it mean if "the numbers are not in the book"? I plan on gathering info on the history of this Parker.

Lastly, I mostly only hunt whitetail. I would like to take this in the field to give it a try, and was curious what most would hunt with a gun like this. Where I live, game birds can be though to find. (sorry for the "new guy" questions, but I have never shot double barrel antiques)