Hank Aaron single signed baseballA Hank Aaron single signed Baseball is worth between $100.-$250. Value is based on average prices of recently closed auctions. Prices may vary based on condition, and the type of authenticity that accompanies the signature. Signatures that have not been properly authenticated could sell at half the market value or less. Add for inscriptions.Collectors will pay more for inscriptions like "755 HR" and pay less for personal inscriptions like "Good Luck Chuck" If Hank Aaron dated the ball "1959" it will have added value.