Hi, thanks Ralph,
Robert @ Prestigecollectibles is the Japanese card expert (he posted a couple times earlier in this thread), he actually just told me the Japanese Catalog number for the set above (JCM45) as I didnt know it yet, the front shows Dino Restelli and the back is Con Dempsey, its from 1949 like most of the other San Francisco Seals cards. There are many different types. Im far from an expert at these, but have owned at least 8-10 different kinds of Seals player cards from Japan, all from 1949.
I showed a couple of the Yakyu Shonen Magazine cards in the 1st thread on foreign cards, I put a couple more below
couple more example of SF PCL sets (no longer own these 2)
1949 JCM4 Roy Nicely
1949 JCM77 Dino Restelli (Robert, thanks for ID)
Yakyu Shonen (Youth Baseball) Magazine
1949 Yakyu Shonen JGA3 Bill Werle
1949 JBR13 Bill Melton
PS Robert, if you see a missed ID, please let me know, I dont read Japanese and dont have a catalog yet