Description:1951 Connie Mack Book complete set of (4) cards. Small set of (4) cards as issued in conjunction with Mack's book, "My 66 Years in the Big Leagues." Includes Connie Mack (PSA EX-MT 6), Christy Mathewson (PSA EX-MT 6), Babe Ruth (PSA EX+ 5.5), and Rube Waddell (PSA VG-EX+ 4.5). Also includes the header cards with which they were issued (chipping/wear, FR): PSA VG-EX+ 4.5 to PSA EX-MT 6