Patrick Mahomes and Len Dawson, the two Super Bowl winning quarterbacks for the Kansas City Chiefs, have each hand signed this Chiefs Riddell full-size replica helmet at a private signing. Dawson included the inscription "SB IV MVP" with his signature. This item is authenticated by Beckett Authentication Services, one of the top authenticators in the industry. Their tamper-evident hologram featuring a QR code and serial number is on the item. The authenticity can be verified online by entering the serial number or scanning the QR code.Item pictured may not be the exact item you will receive. It will be similar quality, and we guarantee your satisfaction.