Found a M&P probably vintage 1948 serial # S983XXX, 4", 6 shot, reportedly carried by a GI during the Korean War. IMO it is about 85 to 90 percent, some holster wear, needs a good cleaning, wood S&W checkered grips, all the numbers match, locks up tight. Has seen some use and needs a bit of TLC. What is it worth? Thanks for your input.