Vintage Gillette TECH Safety Razor with Closed Comb and Ball-End Handle - Darwin Shaving
Amazon.com: Gillette ProGlide Razor for Men, Handle + 1 Blade Refill : Beauty & Personal Care
File:Vintage Gillette Tech DE 3-Piece Safety Razor, Ball End, No Date Code On Razor, Made In USA, Circa 1946 - 1951 (26809828378).jpg - Wikimedia Commons
File:Vintage Gillette Ball-End DE Tech Safety Razor, Made In USA, Circa 1940s (29348880315).jpg - Wikimedia Commons