1950's Vintage Japanese Paper Label or Print-Baseball Kids

I have no idea what this 1950's vintage Japanese paper print was used for. The fact that a smaller section at the top is printed upside down would make it work on a cylinder as a label.

The colors in this print are typical 1950's vibrant red, turquoise, lime green, yellow and pink. I do not know what the Japanese characters say.

The image shows a boy wearing a baseball cap and holding a bat on his shoulder. His hand rests on his little sister's pigtailed head. The paper is quite thin so the images show through on the back to some extent.

Condition is excellent and unused with no obvious age related issues.

5 inches (12.5 cm) wide

10 and 5/8 inches (27 cm) tall

Excellent