JCM 64: 1950 Who Am I?

1345x71 Fujimoto - added 10/4/24

Then I found a 2nd set, it looks identical to JCM64, but is differentiated by the fact that the fronts have cruder drawings, and the back math equations are in a thicker/bold font. The following cards belong to this other set.
251x7 Nishizawa - added 7/14/24

Lefty O'Doul - added 10/11/24

Victor Starffin - added 1/13/25

Brocker (appears to be a cruder drawing set variant of JCM64) - added 1/24/26