Can you read Japanese? Can anyone tell me about this 1971 Japan Kid's Baseball Box?

Question:

Hi: I found this Japanese baseball box from about 1971. It's empty, unfortunately. Can anyone identify it? What did the box hold? Is the team depicted a generic or real Japanese team? Thanks! Here's a photo: http://www.looncreative.com/japanbaseball.jpg

Answer:

It's not a real baseball team, but dramatized one.
To answer the question, "What did the box hold", I guess there was a pencil case inside because the words in the top left reads "筆入", literally pencil case.
For more on this check this out.
http://www.youtube.com/watch?v=0tNGGRa4r…