Cleaning out my father-in-law's house in AK, I found a Greener 20ga sxs. The serial # appears to be 58358 (the 1st "8" is a more angular shape than the 2nd). There appears to be a letter "G" on the other side of the screw. The gun is in rough condition. My question is: Is it worth having someone look at it or should I give it away with his other guns(also poor condition)? I don't want to ship it to CA.