This is an odd little bromide card I picked up on eBay a few months ago. I'm not sure when it's from, although the Carp uniform shown looks like the one used between 1954 and 1956.
I've been attempting to figure out who is on the card. I think the regular first baseman for the Carp during those years was Makoto Kozuru but the kanji doesn't look right for him. I think the baserunner is Jun Hakota of the Kokutetsu Swallows - he wore uniform number 3, the uniform looks like the Swallows uniform from 1955-1959 (with the stripe on the sleeve) and the kanji looks like it might fit - the second character is pretty clearly "ta".