This Riddell speed "Bring the Wood" white mini-helmet helmet was hand-signed by Baker Mayfield. This helmet was signed in black ink. It is officially licensed by the National Football League and comes with an individually numbered, tamper-evident hologram from Beckett. To ensure authenticity, the hologram can be reviewed online. Listing and template services provided by inkFrog.The item "Baker Mayfield Signed Oklahoma Sooners Bring the Wood Speed Mini-Helmet Helmet" is in sale since Thursday, January 31, 2019. This item is in the category "Sports Mem, Cards & Fan Shop\Autographs-Original\College-NCAA\Football\Helmets". The seller is "gatewayauthentics_1" and is located in O'Fallon, Missouri. This item can be shipped to United States.