The included factory letter states that the revolver was shipped from the factory on March 7, 1932 and was purchased by the Denver Police. The two line address/patent dates marking on top of barrel, caliber marking on left barrel side and "SMITH & WESSON" on the right barrel side. The underside of the barrel has the serial number, letter "B" for blue finish and an eagle head. Fitted with checkered S&W medallion grips.