My Father passed, I have his S&W 38 Spec....No Model Number on Gun, and No paperwork. It is a Compact Revolver, Snub Nose, Exposed Hammer, and Wood Checkered Grips. The Serial Number on the bottom of the Grip is "619XXX".....Can someone Please Help me Identify Model and Approx Year of Manufacture. It is in Pristine condition with very little use. Thanks in advance.