The 1920's brought us some of the National Football League's must prized franchises. The uniforms of this era are a dime a dozen. So many teams changed their look from year to year. It was not unusual for a franchise to buy their uniforms used. That's what the Chicago Cardinals did their first year. Jerseys were often a real thick material like wool. Football helmets were still not mandatory in the league; so many players did not wear them. http://www.jerseysshopcheap.com