[Harford20]

Actually, There are may Sadaharu Oh rookie cards, all from 1959. Here is a list of the 17 that I have (have 4) or have documented. There are likely many more that are very rare.

1959 JCM 12a Marusan (Hand cut)
1959 JCM 14b
1959 JCM 30b, Lucky Card”-Stamp #2 (Doyusha)
1959 JCM 24 Hoshi Gangu (backs vary)
1959 JCM 24 Hoshi Gangu Gold Border
1959 JCM 31c Marukami color (Hand cut)
1959 Menko Marumatsu JCM32e
1959 JCM 33e version 1Yamakatsu (Hand cut)
1959 JCM 33e version 2
1959 JCM 39-2
1959 JCM 40 Maruta version 1 (Hand cut)
1959 JCM 39-1 Marusho
1959 Menko JCM43d Marusan Swinging (rare)
1959 Menko JCM43d Marusan Sitting (rare)
1959 JCM 40 Maruta version 2
1959 JCM 69
1959 Menko Yamakatsu

Unfortunately, the most common are the JCM 33e versions.

Good luck with the sale.
Dave