1952 Topps Mickey Mantle. Famous for being inserted into the last series. Topps had so many leftovers, it dumped thousands of third series cards into the ocean. Mantle's popularity, combined with the scarceness of the cards, make this one expensive. the 1952 Topps Mickey Mantle is among the most sought after cards in the hobby, the post-War 'holy grail' for collectors.