Tony Dorsett autographed Dallas Cowboys 11x17 mini poster

11x17 inch Sports Illustrated mini poster issued in 1987 as a Quaker Chewy Granola Bars promotion autographed in black marker by legendary Dallas Cowboys running back Tony Dorsett. Poster is prefolded (for distribution in the box) but otherwise in perfect MINT condition. With certificate of authenticity from AutographsForSale.com. ONLY ONE AVAILABLE FOR SALE.