Ball (gridiron football) - Wikipedia
The Duke runningroadblocks
Preparing the Footballs for NFL Games
Photos: A peek inside Peyton Manning's game ball collection
Throughout American sports history, no other brand has been partnered with a league longer than Wilson has been with the NFL. Not only has every point scored in the NFL been with a Wilson Football, but every Wilson NFL game ball has been handcrafted in Ada, OH by skilled craftsmen and women for decades. The Duke NFL football was named in honor of the game's pioneering legend and NY Giants owner, Wellington Mara.
Wilson The Duke NFL Football - Salute to Service
Making the Official Football of the NFL
NFL footballs take detailed journey from factory to field
Everything you need to know about the footballs that will be used
Wilson The Duke Official NFL Leather Game Football
Super bowl footballs made in Ohio
Super Bowl 50 Official Leather Authentic Game Football
Vintage Wilson THE DUKE NFL Football Game Ball 70's Official
Super Bowl footballs are made at Wilson factory in Ada, Ohio
Regulations you should know about NFL footballs - Dawgs By Nature