Mariano Rivera autographed New York Yankees Official Major League Baseball featuring 11 career inscriptions including 1995 2013, #42 Retired 9 22 13, 2.21 Career ERA, .070 Postseason ERA, Alltime Saves Leader, 652 Career Saves, 42 Postseason Saves, 5x WS Champs, 13x Allstar and 99 WS MVP. This limited edition baseball is individually numbered 1 of 42. The item has received a Steiner authentication hologram. No COA (Certificate of Authentication) or LOA (Letter of Authentication) is included with this item.