History of the Chicago Bears - Wikipedia
Jacksonville Jaguars reveal new logo for 2013 season
File:Chicago Bears wordmark.svg - Wikipedia
Dallas Cowboys - Wikipedia
What Does 'GSH' Mean on the Chicago Bears Uniform?
Logos and uniforms of the Chicago Bears - Wikipedia
Chicago Bears Logos - National Football League (NFL) - Chris Creamer's Sports Logos Page
Minnesota Vikings, American Football Wiki
Green Bay Packers - Wikipedia
Chicago Bears, American Football Wiki