1968 Topps #-D Baseball Test Issue Roberto Clemente card. The card has been graded and encapsulated by PSA NM-MT 8. Produced a full 2 years in advance of the famous Kellogg's 3-D run, these were a truly innovative set of cards. Blank backed with rounded corners, the cards saw very limited distribution. The checklist lacked star power as only Clemente and Tony Perez became Hall of Famers from the set. The card itself appears sharp with only some black ink marks on the reverse keeping this from a higher grade.