I would like to learn more about the S&W 5 screw, blue finish, 6.5", 455 I own. The s/n 632xx is on one side of the lanyard and a clover design with the number 30 is on the other side of the lanyard. Behind the cylinder release are several figures including what look like the numbers 5&6 over an E. It is not stamped, "made in the USA". Any info would be appreciated.