A #8 Plaque Stamped 8/8/88 Envelope with MLB Postage Stamps hand signed by Willie Stargell, Gary Carter, Yogi Berra, Bill Dickey. The item and signature are in excellent condition. The envelope measures 16.5cm x 9.2cm. AUTHENTICATION: The item is accompanied by a JSA Certificate of Authenticity - JSA Serial Numbered and Databased Hologram