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Evoluotion of football helmets
The 1920s football helmet was made of leather -
Evolution of football helmets
The 1930s helmet was a more hard leather -
Evolution of football helmets
The 1940s helmet was still the same it was still a hard leather -
Evolution football helmets
The helmets turned to plastic and they added a face bar -
Evolution of football helmets
The added another face bar on a mask -
Evoloution of football helmets
They added air bladders inside the helmet to soften impact -
Evolution of football helmets
The added polyunsaturate shells
