Butkus was drafted in 1965 and he is also widely regarded as one of the best and most durable linebackers of all time. Butkus started as a football player for the University of Illinois and the Chicago Bears. He became a member of the Pro Football Hall of Fame in 1979. He played nine seasons in the NFL for the Chicago Bears. Billed at 6 ft 3 in, 245 lb, he was one of the most feared and intimidating linebackers of his time, being named the most feared tackler of all time by NFL.com in 2009. Butkus was selected to eight Pro Bowls and was all-league six times. In his rookie season, Butkus led the Bears in tackles, interceptions, forced fumbles, and fumble recoveries, and regularly led the team in these categories throughout his career.

This Chicago Bears throwback mini helmet was signed in silver by Butkus and inscribed, "#51" and "HOF 79." This mini helmet includes a JSA sticker and COA.