(20) proof coins including (2) 1983-S Los Angeles XXIII Olympiad, 1984-S Los Angeles XXIII Olympiad, (6) 1986-S Liberty, (2) 1987-S Constitution, (2) 1988-S Olympiad, 1990 Eisenhower Centennial, 1990-W Eisenhower Centennial, (2) 1991-S Mount Rushmore, 1993-S James Madison, 2002-W West Point and 2005 Chief Justice John Marshall