The two cards depict Hall of Famers Tetsuharu Kawakami and Kaoru Betto. The card fronts contain player vital information, while the backs discuss how Bob Feller and Hiroshi Oshita (HOF) perform so well because they take vitamins! Wakamoto appears to be a vitamin manufacturer who used the cards for promotional purposes.
Size: Both cards are approximately 1 7/16" x 4 1/16".
Condition: Vg/Ex to Ex