Merkur 42C Double Edge Safety Razor — Castle Rock Shaving
Image of GILLETTE RAZOR, 1904. - Drawing From King C. Gillette's Patent Application For The Gillette Safety Razor, Submitted In 1901 And Approved In 1904. From Granger - Historical Picture Archive
1904 Gillette Double ring patent applyed for | Against The Grain - Wet Shaving Forum
Merkur Classic 1904 / 1906 Safety Razor with Bar | West Coast Shaving
The Gillette Double Ring: The Razor that Started it All - Sharpologist