AUTOGRAPH COLLECTION -- AMERICAN PRESIDENTS. A collection comprising signatures of Woodrow WILSON (signature only, dated 25 March 1919), Calvin COOLIDGE (letter signed, 1932), Ronald REAGAN (letter signed as Governor of California, 1969, 'It is ... the responsibility of [elected] officials not only to respond, but actively to invite ... citizen opinion'; with a signed photograph), Jimmy CARTER (typescript 'Oath of Office' signed, with a photograph of Carter's inauguration) and Richard NIXON (printed form signed for Who's Who in America, 1950-51), 6 items in total. (6)