Damar Hamlin Buffalo Bills Autographed Football Speed Mini-Helmet Autographed mini-helmet of Buffalo Bills star Damar Hamlin - authenticated by Beckett This officially licensed NFL football mini-helmet by Riddell has been hand-signed by Buffalo Bills star Damar Hamlin. Hand-Signed by Buffalo Bills star Damar Hamlin Signature is bold and clear on the helmet Official NFL Riddell speed mini-helmet Includes Beckett serially-numbered hologram of authenticity