Mickey Mantle, Willie Mays, Duke Snider Signed Perez Steele Great Moments.PSA 10Willie, Mickey, and the Duke! Offered here is a classic piece of baseball history a Perez Steele Great Moments postcard signed by three of the greatest players of all time! Willie, Mickey, and the Duke patrolled center field for all New York City ball clubs at the turn of the century. Each Hall of Famer has signed the postcard in bold blue ink, and while all of them were accommodating signers throughout their lives, this piece is extremely rare