Original engraved invitation to the inauguration of Richard Nixon and Spiro Agnew, 6.5 x 10, January 20, 1973, signed in various colors of ink on the front cover by Richard Nixon, Spiro Agnew, John W. McCormack, Carl Albert, and Mike Mansfield. In fine condition, with very irregular ink flow to Nixon, resulting in several “dropped” strokes to signature, and smudging to McCormack. COA John Reznikoff/PSA/DNA and R&R COA.