A pawn shop owner friend of mine called me out of the blue yesterday and said he had a "Browning Superposed 12 ga. manufactured in 1931 in beautiful shape." He wanted to know if I might be interested in buying it. He has an old Blue Book of Gun Values that tells him it's worth $1,400. My current Blue Book has a lot of info and variations. I'm going to go take a look at the gun later today. What specifically should I look for? Anybody have a checklist that might be helpful? I'd like to collect data and then evaluate it before I make an offer. Thanks for your help.