Yep could be twins, except yours seems to have a little better wood. The wood on the one here is very plain, and very light colored. I believe the rust corrosion is from improper storage. There are no tools with the gun however. I don't think that refinishing it to make the wood look better and cleaning it up would hurt it at all. I might even checker it!! The price is in the 800 range so it's a bit high right now but I will do some hagglin'.

Double guns and English Setters