This is from the 6th Topps series of iconic 1952 that contained the Mickey Mantle card.Also the 1952 set was the first set of cards made in size that we have today.
Here is the story behind it.
The upstart Brooklyn based Topps company carefully planned their attack on Bowman’s dominant position in the baseball card market. The 1952 Topps Baseball Cards were the first to be issued in six series. Each series was carefully proportioned with a fairly equal number of stars and players from each team. The sixth series contained #311 Mickey Mantle
The 1952 Topps 6th series was distributed in such low numbers that it is the toughest and most expensive high number series in the history of collecting and the hardest set to complete. For the next decade, Topps tried to give away these cards at various promotions, until they finally gave up and dumped the remaining 1952 Topps cards into New York Harbor!