He would go on to become one of the biggest names in sports. In 1953, no one could have imagined it. Contract (original, white copy) is his first known one. It's for his job with the Clubs of the Caribbean Conference of Professional Baseball Leagues, specifically the Caguas Baseball Club in the Puerto Rican Professional Baseball League. He was being paid the princely sum of $500 a month. It is signed by Aaron (9/10) and is in EX-MT condition.