Here are some important fun uncatalogued cards that I've come across just in the past week!
I've added 5 new Nagashima rookie cards to the list!
JCM 31d: 1958 Marukami B&W Front w/o Border Color Cartoon Back
90000 Nagashima/Kawakami w/ kimono (UNC)
JCM 32a: 1958 Marumatsu Scoreboard Back, Borderless
Nagashima - knees up, holding bat, RED bkg (UNC) - Previously there was known a green background version in JCM32a...
Nagashima-crouching (UNC)
Nagashima - Headshot, looking down (UNC)
Nagashima - Waist up, looking up, man in back (UNC)
And it's rare that I come across a new Sadaharu Oh card, but here's one from
JC 2b: 1973 Large Calbee Premiums
(this was a premium mail-away prize - kids would send in their "homerun" cards and choose this or a baseball card album)
(I like this one especially, as it mentions that Oh was chasing Babe Ruth's home run record - in 1973 Oh had hit in the mid-500s)