JCM 41: 1959 Pitcher Catcher Batter Back

It is my belief that every card in this set has a matching prize variant, like JCM 29. Card fronts that don't have catalogued prize card backs are listed here. And some cards with listed prize card backs have regular backs here.
Yamauchi

Katsuragi (the guide is missing the full # on the back)

Sakazaki (guide has this as #8657319)

3rd Place Inao - added 4/27/24

2nd Place Bando - added 10/3/24

Fujimoto - added 10/4/24

Fujita - added 10/4/24

Sadaharu Oh (3rd place) - added 10/4/24

Tamiya (3rd place) - added 10/4/24