The accompanying factory letter states the revolver was shipped on August 9, 1937 and delivered to Roberto A. Gonzalez (sic), Armeria La Nacional (The National Armory), Mexico City, Mexico with an 8 1/4 inch barrel, Marble bead front sight, "U" notch rear sight, blue finish and tuskoid grips. This particular Registered Magnum, number 2517, is an incredibly rare variation. It is one of an estimated eight factory built Registered Magnums with an 8 1/4 inch barrel and is fitted with rare factory S&W medallion ivory colored polymer grips called tuskoid. The revolver features a Marble no. 35F bead front sight, an adjustable "U" notch rear sight, standard S&W markings, "REG 2517" stamped on the inside of the frame, and matching serial numbers on the butt, cylinder, and ejector shroud. The right side of the frame has the large S&W logo and the tiny "Marca Reistrada" marking which was used on revolvers shipped to Spanish speaking countries prior to World War II. S&W manufactured the Registered Magnum from 1935 to 1939 and these revolvers were virtually a custom made handgun chambered in .357 Magnum, the most powerful handgun cartridge at the time. This “state of the art” handgun quickly gained popularity with law enforcement agencies, including the FBI, looking for a sidearm to deliver more stopping power, popularized big game handgun hunting, and as this example proves gained international interest. This revolver is the only documented original tuskoid gripped Registered Magnum shipped from the factory. See the following lot for a Colt Shooting Master .357 Magnum target revolver that was also shipped to Robert Gonzalez in July 1937. Provenance: The Gary Garbrecht Collection; The Ray Cheely Collection; The Dave Ballantyne Collection