261R. Smith & Wesson – Mod. 45-2 22 M&P – 22LR Cal. Double Action Revolver – w/4” Barrel w/Ramp Blade Front & Notch Rear Sights – Blued Finish – w/S&W Medallion Diamond Checkered Wood Grips – w/Factory Box & Factory Letter – The Model 45 Was Designed & Mfg. at the Request of the U.S. Post Office Dept.! Factory Letter Confirms This Info