This listing is for a Dan Marino Signed Autographed Miami Dolphins Riddell Flash Replica New Full Size Helmet. Dan signed this helmet in person when the Miami Dolphins were in town to play the Washington Commanders during the 2023 season. This autograph was professionally authenticated by one of Ebay's primary approved leading third party autograph authentication services, JSA. Want more assurance before you buy? Go to JSA website and enter the certificate # AQ70799 into the verification field and see the proof for yourself! The item will come with a JSA Certificate Of Authenticity (COA) certification card and a JSA certification sticker that was placed on the helmet after being signed. Shipping and handling is $20.