About this recording 439–20 President Richard M. Nixon UNKNOWN May 21, 1973 Unknown Richard M. Nixon Conversation No. 439-20 Date: May 21, 1973 Time: 4:25 pm - 4:26 pm Location: Old Executive Office Building President met with an unknown man. -15- NIXON PRESIDENTIAL LIBRARY AND MUSEUM Tape Subject Log (rev. August-2011) Conversation No. 439-20 (cont’d) President’s schedule -Ronald L. Ziegler and J. Fred Buzhardt, Jr. The unknown man left at 4:26 pm. Secret White House Tapes | Richard M. Nixon Presidency 439–20 Backward Play Stop Forward Download audio Previous 167–9 Next 440–1 More Richard M. Nixon Recordings View all Richard M. Nixon tapes 440–1 audio icon 925–1 audio icon 440–10 audio icon 440–11 audio icon 440–12 audio icon 440–13 audio icon 46–137 audio icon 46–138 audio icon 46–139 audio icon 440–14 audio icon