It was the only World Series the great Cal Ripken Jr. ever won, coming in his second full season as a major leaguer. This official American League (MacPhail) baseball commemorating that last Baltimore championship is in NRMT condition and features Cal's signature, as well as 24 others, including: Murray, Martinez, Bumbry, Palmer and the rest of the crew. They average 7/10 and "World Champions 1983" is also written on the very clean ball. The O's defeated the Phillies in five games that fall.