Stunning vintage glossy 8 x 10 full-length portrait of Gehrig posing in his New York Yankees uniform with his bat on his shoulder, neatly signed and inscribed in fountain pen, "To Al—May your achievements make mine look trivial—Cordially, Lou Gehrig." The lower right corner also bears an ink notation by the official team photography studio from the 1920s through 1940s, "Thorne," as well as the "Thorne Photo / Official Photographer" stamp on the reverse. In fine condition, with some scattered light creasing. Encapsulated in a PSA/DNA authentication holder. A striking image of the 'Iron Horse,' and by far the finest Gehrig photo we have encountered.