New here and I'm sure it's been discussed before, but is there anyone that has a way to find the vintage of an old Trade gun. Not sure if mine is Crescent or J. Stevens but the Trade name is Newport Model CN. Research so far shows it could have been made by just about anybody. It showed up at our house sometime in the 50's, but not sure if maybe my dad got it from his dad. Serial or assembly number is stamped all over it so if there are records somewhere maybe I can trace it. Thanks for your thoughts.