A Chicago White Sox Rawlings Mach Pro MLB Helmet hand signed by Frank Thomas. The item and signature are in excellent condition. Frank is a 5x All-Star Selection; a 4x Silver Slugger Award Winner; a 2x American League MVP; and Class of 2014 Hall of Fame Inductee. AUTHENTICATION: The item has been tagged with a SmarTag powered by Prova Technology; which gives you digital access to the items authentication records; including a proof picture from the signing.