Superb circa 1913 matte-finish 11 x 14 bust portrait of Carnegie in a handsome suit, signed in the lower border in crisp black ink, "Yours truly, Andrew Carnegie." Blindstamped below the image by photographer Theodore C. Marceau of New York. A diagonal crease extending from the left border to Carnegie's collar has been professionally softened, and overall professional cleaning has given the signature a subtle haloing effect, otherwise condition is fine. Carnegie is scarce in signed photos; this one, uninscribed and the largest we have seen, is a riveting pose of stately intensity.