About this recording 757–15 President Richard M. Nixon UNKNOWN July 31, 1972 Unknown Richard M. Nixon Conversation No. 757-15 Date: July 31, 1972 Time: Unknown between 9:57 pm and 10:16 pm Location: Oval Office The President met with an unknown man. The President’s schedule -Pardon for interruption The unknown man left at an unknown time before 10:16 pm. Secret White House Tapes | Richard M. Nixon Presidency 757–15 Backward Play Stop Forward Download audio Previous 198–9 Next 758–1 More Richard M. Nixon Recordings View all Richard M. Nixon tapes 758–1 audio icon 758–10 audio icon 351–10 audio icon 351–11 audio icon 758–11 audio icon 758–12 audio icon 351–12 audio icon 758–13 audio icon 351–13 audio icon 351–14 audio icon