This card (#344) from the 1975/76 Calbee set* shows 1975 Pacific League MVP Hideji Kato (#10 on the left) along with two of his Hankyu Brave teammates - pitcher Takashi Yamaguchi (#18 in the center) and catcher Kenichirō Kawamura (on the right). I had originally thought this photo might show this happy trio celebrating winning the 1975 Nippon Series but after doing a little research I don't think that's the case. The Braves won the deciding Game Six of the 75 Series at home while the players are wearing their away uniforms in this photo. In addition the Braves catcher for that game was Shinji Nakazawa, their regular catcher that season. However this photo could be from Hanyku's 2-1 victory in Game Five two days earlier - that game was played in Hiroshima, Yamaguchi got the save and Kawamura was the catcher. Or it's just from some random game in 1975 - I don't think there's anything on the card that actually says it's from the Series. Regardless I think it's a pretty cool card.
*I guess we should start calling it the 1975/76/77 Calbee set now based on what Sean's discovered