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The 1961 Topps baseball card set includes 587 standard size cards, which measure 2½" by 3½". The subsets for the 1961 Topps baseball cards are the league leaders (cards 41-50), World Series highlights (401-410), MVP's of the 1950's (471-486), and the Sporting News All-Stars (566-589). The high number series, which is difficult to find, ranges from card number 523-589.
The key rookie cards from this set include #35 Ron Santo, #141 Billy Williams, and #417 Juan Marichal.
2010 Who's Who in Baseball