Purchase this Hopalong Cassady Autographed Ohio State Buckeyes Mini Helmet - Certified Authentic for your collection or as a gift for a friend of loved one! All Prime One Sports memorabilia comes with a Certificate of Authenticity guaranteeing that your favorite player hand signed the item. The item is backed by our 100% Money Back Guarantee. Hopalong Cassady is an Ohio State Buckeyes fan favorite and the 1955 Heisman Trophy winner. Check out more Prime One Sports memorabilia for more from your favorite players and teams!