This Oakland Raiders Riddell full-size authentic helmet has been hand signed by 10 Raiders Hall of Famers; Marcus Allen, Howie Long, Fred Biletnikoff, Art Shell, Tim Brown, Ray Guy, Ted Hendricks, Dave Casper, Jim Otto and Willie Brown. Each player included his HOF inscription with his signature. This helmet is fully padded inside like the ones worn on the field. This item comes with a certificate of authenticity (COA) from JSA - James Spence Authentication and was signed in the presence of one of their representatives. You will receive a serial-numbered COA along with a matching serial-numbered sticker on the helmet. The authenticity can be verified online by entering the serial number.Item pictured may not be the exact item you will receive. It will be similar quality, and we guarantee your satisfaction.