For this popular program, collectors have the option of seeking out a cover signature or an interior signature—and when the latter is as nice as this one (a perfectly situated, blue-Sharpie "10" example), it's hard to argue that the photo isn't a superior choice. What's more, Mantle's signature is inevitably better protected on the inside. Condition of the 8x10 program is EX-MT overall. Full LOA from JSA.