What is the value of an autographed ken griffey jr baseball if inducted into hall of fame?

A Ken Griffey, Jr. single signed baseball is worth between $75.-$100.

Value is based on average prices of recently closed auctions. Prices may vary based on condition, and the type of authenticity that accompanies the baseball. Signatures that have not been properly authenticated could sell at half the market value or less. Add for inscriptions.

If the baseball is inscribed in the future by Ken Griffey Jr. Referring to his induction into the hall of fame it will have added value. Collectors will pay more for inscriptions such as "HOF", and pay less for personal inscription like "Good Luck Chuck"

Ken Griffey's popularity is already high, and it is no secret that he will be inducted into the Hall of Fame. When he does get inducted into the Hall of Fame the value might go up slightly as the demand goes up with the added attention. The value will then level out or go back to it's previous value as he adds to the supply by signing more baseballs, and the demand will be met. In a recent auction a Ken Griffey, Jr single signed baseball sold for $107.