About this recording 478–4 President Richard M. Nixon UNKNOWN April 13, 1971 Unknown Richard M. Nixon Conversation No. 478-4 Date: April 13, 1971 Time: 11:13 am Location: Oval Office The President talked with an unknown person 20 NIXON PRESIDENTIAL MATERIALS STAFF Tape Subject Log (rev. 9/08) Schedule Secret White House Tapes | Richard M. Nixon Presidency 478–4 Backward Play Stop Forward Download audio Previous 477–9 Next 248–1 More Richard M. Nixon Recordings View all Richard M. Nixon tapes 248–1 audio icon 479–1 audio icon 248–10 audio icon 248–11 audio icon 248–12 audio icon 248–13 audio icon 248–14 audio icon 248–15 audio icon 248–16 audio icon 248–17 audio icon