Bob Lilly autographed Dallas Cowboys authentic full size Pro Line throwback helmet

Dallas Cowboys full size Pro Line authentic game model throwback helmet (NOT A REPLICA) autographed in black marker by legendary defensive tackle Bob Lilly and inscribed HOF '80. From a 2003 paid signing with Athletic Promotional Events, with their holograms on the helmet and certificate of authenticity. This is the exact style worn by Lilly during his prime early 1960s seasons. ONLY ONE AVAILABLE FOR SALE.