I aquired this S+W revolver years ago in a trade. The 4" barrel is marked (Offical Police .38 Special CTG).
Your revolver is a Colt
Official Police, it's not
a S&W product. I suggest reposting your request in the main section of the "Revolver" subforum.
"Smokey, this is not 'Nam. This is bowling. There are rules... MARK IT ZERO!!" - Walter Sobchak