1949 Japanese Baseball Cards

Just saw this photo, posted on Dull Tool Dim Bulb, of a set of 1949 Japanese baseball cards.  Not much information in the post, and I certainly cannot read Japanese, but some interesting observations are possible.  The first and most obvious item:  the cards are not photographs, but artistic renderings of the players, almost in a comic book style.  I cannot be certain if these were meant to represent specific, individual players, or just generic players for the team indicated.  The fact that the team names are in English (Giants, Tigers, Tokyo) is also interesting.