My dad past away 12 years ago and before his passing he gave me his first rifle, which his dad traded a 12 gauge & 2 pigs for during the depression. It's a 22 Remington Model 12. It's been in my closet since my dad gave it to me & now I want to take it to the range & shoot it but, I'm trying to find out how old it is. I looked on the web but haven't been able to find anything. Can someone guide me to a site the might be able to help me?