Nice baseball and box.
Looking at the keymancollectibles website dating guide, it looks like this could be the 1951-1959 model. I just did a quick comparison, so another model might be a better match when closely examined.
This website really comes in hand when trying to figure out the time frame of a signed ball. They did a great job with it.
Here's a link to the ball dating guide:
https://keymancollectibles.com/officialbaseballs.htm
and the 1951-59 ball page:
https://keymancollectibles.com/balls...seball1959.htm