What is the value of a Mickey Mantle autographed baseball Willie Mays autographed baseball and Stan Musial autographed baseball?

A Willie Mays single signed baseball is worth about $125.-$200.

A Stan Musial signed baseball is worth about $60.-$100.

A Mickey Mantle single signed baseball is worth about $400.-$600. Rare examples of a pristine signature or inscriptions like "The Mick" "HOF 1974" or 536 HR's" could raise the price to the $1,000. price range.

Prices will vary based on condition, and type of authenticity that accompanies the signature. If the signatures are not properly authenticated it could sell at half the market value or less