Martin Luther King signs the cover of the 18 February 1957 issue of ''Time'' magazine, of which he was the cover story. In blue ink, the civil rights pioneer inscribes: ''Best Wishes / Martin L. King Jr.'' beside his beautifully illustrated portrait. The headline reads simply, ''Montgomery, Alabama's REV. MARTIN LUTHER KING''. Measures 7.75'' x 11''. Mounted to a paper board. Light creasing to edges and an area of surface loss to lower right, likely from the removal of a mailing label. In very good condition.