When Jimmie Foxx autographed this classic silhouette shot of his follow-through, he added extra punch to an already valuable work. His A's uniform dates this to the late '20s or so, when he was just cranking up his Hall of Fame career. Signature carries extra pinache, with dramatic J and F and thunderous underline. A perfect 10. NRMT original has gotten the kid glove treatment over time. The background is still white and Foxx's shadow-hugged image is unmarked. Artsy treatment adds vintage chic to a player whose reputation only improved with age.