Hi Guys; Hoping someone out there can help me. I am trying to find the age and value on a Colt New Frontier in .22/ .22 magnum. It has adjustable sights and has the additional .22 mag cylinder.Is there a web site somewhere I can go? Tried typing it in on Google but all I got was another search engine. I have had this pistol for almost 30 years and they were discontinued in the 70's. The serial number is G144xxx if that helps. It is in Very good condition with minor marks from handling and usage. Any help or history would be greatly appreciated.