Iver Johnson's top-break revolver featuring their celebrated hammer-the-hammer safety, which prevented discharge unless the trigger was fully depressed. Used extensively by American police officers who valued its simple operation and safety features. Type: Revolver Action: Double-Action Caliber: .38 SW Capacity: 5 Year introduced: 1894, USA Weight: 22 oz Overall length: 9" Status: Discontinued Intended use: Police, Collecting