The 1990 Oakland A’s, managed by Tony La Russa, were a powerful team that buzzed through the regular season with a record of 103-59 to take the AL West Division crown. In the ALCS, they swept the Boston Red Sox in three straight games, before getting swept themselves by the Cincinnati Reds in the World Series. With the formidable “Bash Brothers” in their lineup, Mark McGwire (39 home runs) and Jose Canseco (37), the A’s always posed a threat. Offered here is an Official 1990 World Series baseball signed by 33 members of the Oakland A’s team. La Russa’s signature can be found on the sweet spot with a number of notable signatures gracing the rest of the baseball including McGwire, Canseco, Rickey Henderson, Harold Baines, Carney Lansford, Willie Randolph, and Terry Steinbeck. The baseball is near mint and the signatures rate a collective 8/10.