Sean: Don't pay any attention to HoJo: Your Lang is nitro proved & appears to be in proof. If it has no major defects in the wood, action or bores I would value it at $1,000-$1,500, perhaps a little more since it is cased. The percussion double, probably from $700-$1,000, again depending on overall condition. I hope that this helps. The Lang is a London gun and, although not considered a "London Best" is at least in the second tier. The present company of Atkin, Grant & Lang could give you more info.

Best Regards, George Lander

To see my guns go to www.mylandco.com Select "SPORTING GUNS " My E-Mail palmettotreasure@aol.com