Tremendous history surrounds this ring, which was earned by Hall of Famer Oscar Robertson. First, there is importance in that it was Oscar's, but second, it celebrates Crispus Attucks High School and Indiana basketball at that level, which is widely considered the toughest in the nation. In 1954, Roberston's sophomore season, his squad was defeated at the state quarter-finals by the Milan High team that was immortalized in the movie, Hoosiers. The following season, Crispus Attucks went 31-1 to win the State Championship, and they repeated the feat in 1956, becoming the first school ever to finish with a perfect record at 31-0. Robertson earned the prestigious "Mr. Basketball" title that season, propelling him into a collegiate career at the University of Cincinnati and eventual NBA fame. This size 11.5 ring is in NM condition with "O.R" is engraved inside the ring, and also stamped inside is the maker "Dyer Indpls." and "10K." On one shank is "19" and the other shank "56," top of the ring has "I.H.S.A.A. STATE CHAMPS" with a basketball player in the middle. Considering the achievements of both the team and the owner, this arguably ranks among the most important high school basketball rings in the world.