Browns history: White helmets, orange helmets and how they came to be - Dawgs By Nature
Browns introduce white alternate throwback helmets
Cleveland Browns Helmet - National Football League (NFL) - Chris Creamer's Sports Logos Page
Browns unveil white alternate throwback helmets
Denver Broncos release first look of new alternate helmet
Browns unveil white alternate throwback helmets
Why don't the Cleveland Browns have a logo for their helmets? - Quora
Browns history: White helmets, orange helmets and how they came to be - Dawgs By Nature
Browns reveal new uniforms with nod to older style
The Gridiron Uniform Database: The Cleveland Browns Uniform History
Cleveland Browns Authentic Speed 1975 - 2005, Throwback Helmets, NFL, Collectibles, Open Catalogue