About this recording 483–11 President Richard M. Nixon UNKNOWN April 20, 1971 Unknown Richard M. Nixon Conversation No. 483-11 Conv. No.483-10 (cont.) Date: April 20, 1971 Time: 1:11 pm Location: Oval Office The President met with an unknown man at 1:11 pm. Schedule -Henry A. Kissinger The unknown man left at 1:11 pm. Secret White House Tapes | Richard M. Nixon Presidency 483–11 Back 10s Play/Pause Skip 10s 0:00 Download audio Previous 949–9 Next 450–1 More Richard M. Nixon Recordings View all Richard M. Nixon tapes 450–1 audio icon 47–1 audio icon 450–10 audio icon 450–11 audio icon 450–12 audio icon 450–13 audio icon 450–14 audio icon 450–15 audio icon 450–16 audio icon 450–17 audio icon