Smith and Wesson Model 21 .44 special caliber, 4" barrel, Thunder Ranch, with thunder ranch logo in gold on right side of frame. Included is the presentation case which has the same logo engraved on its glass top. Revolver has a turn mark on cylinder which I looked into with distributor and it seems this is common on this firearm.
Possibly from test firing at factory..? But this gun is new in box all papers unfired. More photos available if you have and supply an E-mail I can send them to.