The Gateway Stamp Company has been issuing cachets and other mail items meant for postal cancellation for several decades and they remain quite popular in several different collecting arenas. Mickey Mantle has signed this "M and M Boys Home Run Record" well-preserved silk cachet in brilliant blue liquid roller ink. It's been cancelled/postmarked at Yankee Stadium on October 1, 1986, twenty-five years to the day Roger Maris launched his 61st home run into the right field stands. James Spence Authentication LOA included.