Agree with others here, but in terms of dating, I did find this:
In previous years starting in 1940, Carl E. Stotz Official Little League baseballs were made by (approximate dating); Reach (1940-1945) MacGregor Goldsmith (1945-1951) Wilson (1951) and Worth. After 1955 The Official Little League baseballs did not feature a Commissioner stamp.
http://keymancollectibles.com/balls/...llbaseball.htm