San Francisco 49ers Team of the 1980s official USPS First Day Cover commemorative cachet autographed in black marker by Dwight Clark, Randy Cross, Fred Dean, Charles Haley, Guy McIntyre, Tom Rathman and Keena Turner, seven key members of the 49ers dynasty. All autographs obtained in person. Authenticated by JSA with their matching numbered sticker on the back and certificate of authenticity card. ONLY ONE AVAILABLE FOR SALE.