An important set of 12 game used baseballs, each authenticated by Major League Baseball. Includes 7 balls from Baltimore Orioles games (6 different dates - all are signed in blue ballpoint by the man whose career owns the monumental footnote of the longest streak in baseball) including Cal Ripken’s Farewell tour on October 4, 2001. Also includes (5) 2002 ALDS game used balls, Oakland Athletics vs. Minnesota Twins. All Official ML baseballs show nice game use with affixed hologram stickers from MLB.