Jim Plunkett and Rod Martin autographed Oakland Raiders mini helmet JSA

Oakland Raiders Riddell mini helmet autographed in black Sharpie on opposite sides by two-time Super Bowl winning quarterback Jim Plunkett and linebacker Rod Martin. Obtained in person at different Southern California events. Authenticated by JSA with their matching numbered sticker on the helmet and certificate of authenticity card. NOTE: helmet has very minor handling flaws. ONLY ONE LEFT.