Click Here to Continue Viewing Current Query Results or Home to Start a New Query. Description: Auto Strop, first model, spring-loaded push slide to release blade, silver plated, fine knurl, with and without serial number (220986), Robert Waits A1 - 1906 to c.1914 Manufacturer: Auto Strop Safety Razor Co., New York Type: Auto Strop Country: USA Patent: US - 759262(5/10/1904), 764574(7/12/1904); patent information is inside the blade holder Comment: The handle is knurled to within 12 cm of end. No serial number. Source: twillard Editors: