I'm not sure if someone knows more about this. I can't find a lot of info on the shotgun. R S Mortimer on both side plates On top of the barrel it says "Fine London Improved Twist" It appears to be a Damascus twist It is definitely old and I would say in poor shape, but some people tell me that old gun conditions are sometimes judged differently. The stock is cracked and there is a clamp on it. I can tell the clamp is at least 50+ years old. Wasn't sure if someone sees any value here. I was thinking of hanging it on the wall or something.