NIXON, RICHARD Dated 4.7.1973 Color portrait photograph inscribed and signed on the mount as President ("Richard Nixon"), s.l., April 7, 1973. To Chief of Staff Noble Mellencamp, "with deep appreciation for his support service on my White House staff and with very good wishes for his future service to the nation in Moscow." Framed and matted. Size of photograph 9 1/4 x 7 inches.