Inserted into packages of the 1970 Topps (and O-Pee-Chee) regular issue of cards, there are 24 miniature biographies of ballplayers in the set. Each numbered paper booklet, which features one player per team, contains six pages of comic book style story and a checklist of the booklet is available on the back page. These little booklets measure approximately 2 1/2" by 3 7/16".
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