Pokémon Art?

I'm an art student at St. Mary's College. In one of the art labs, we have access to copies of ArtNEWS magazine (one of the oldest and most popular art magazines) dating back to 1930. I was looking at one from 1950 and found this:

What does that look like? Keep in mind that Tajiri started working on Pokémon in 1991. I showed this to some people at my league who pointed out it even has the right number of them (i.e. you can hold up to six Pokémon in the video games and have up to six in play in the TCG)!

This seems to be one of the artist's earlier pieces. I cannot seem to find any references to it at all online. I remember this being from a 1950 issue of ArtNEWS, but my memory could be off a bit. If anyone does happen to know the correct year of this work, please correct me. His webpage can be found here.