Caleb Williams Autographed Signed USC Trojans Full Size Replica Helmet inscribed Fight On! - Authenticated by FanaticsCaleb Williams autographed Replica Helmet. This Helmet was personally autographed by Caleb Williams of the USC Trojans. Included is a serial numbered hologram and Certificate of Authenticity (COA) from Fanatics. This autographed Replica Helmet is the perfect addition to any fan's collection!Authenticated by Fanatics Authentication ServicesIncludes Fanatics serial numbered hologram and COAAuthenticity of item can be verified online