File:Vintage Gillette Long-Comb DE 3-Piece Safety Razor, The New, Made In USA, Circa 1930s.jpg - Wikimedia Commons
The Safety Razor and its origin - Who invented the safety razor – Carbon Shaving Co.
Safety razor - Wikipedia
Edwin Jagger DE89 Reusable Classic Double Edge Safety Razor for Men (Lined) : Beauty & Personal Care
Razor - Wikipedia
Straight razor - Wikipedia
Gillette - Wikipedia
Safety razor - Wikipedia
Shaving - Wikipedia