Oakland Athletics First Mascot – Charlie O the Mule New Era 59Fifty Fitted Hat (Green Gold Gray Under Brim) Size:7 7/8 Chicago Cubs 1908 World 59Fifty

Chicago Cubs 1908 World 59Fifty New Era Fitted Hat in RealTree Camo

Oakland Athletics 1987 All-Star Game New Era 59Fifty Fitted Hat in Walnut with Red Under Brim

This New Era retro Cap is from 1924

This Colorado Avalanche 59FIFTY New Era Fitted Cap features the new "Radiant Red"

Chicago White Sox 2005 WORLD SERIES New Era Fitted 59Fifty Hat in BLACK with Sky Blue Under Brim

Oakland Athletics First Mascot – Charlie O the Mule New Era 59Fifty Fitted Hat (Green Gold Gray Under Brim) Size:7 7/8 Chicago Cubs 1908 World 59FiftyFirst Mascot Charlie O the Mule Oakland Athletics Oakland Patch New Era 59Fifty Fitted Hat in Green, Gold and Gray Under Brim. Charlie O the Mule was the mascot used by the US baseball teams Kansas City Oakland A's from 1965 to 1976. Charlie O the Mule was purchased from Harold Sloan a small town farmer and muleskinner from Osborn, Missouri. The mule was named after Charles O. Finley, the team's owner at the time.