Topps 2019 Heritage Baseball Blaster Box (8 Packs/9 Cards)8 Packs Per Box. 9 Cards Per Pack. 72 Total Cards Per Box. Topps Heritage Baseball is back in 2019 and this year, we will be celebrating the 1970 Topps Baseball design. Current stars, MLB legends, and rookies are showcased on these classics cards. Highlights of this set include Real One Autographs and Clubhouse Collection Relics! Showcasing 500 veterans and rookie players in the 1970 Topps design. Collect all 100 High Numbered Short Printed cards.