About this recording 483–15 April 20, 1971 Unknown Conversation No. 483-15 Date: April 20, 1971 Time: Unknown between 1:25 and 3:04 pm Location: Oval Office Unknown people (Secret Service agents) met. The President's schedule The unknown people left at an unknown time before 3:04 pm. Secret White House Tapes | Richard M. Nixon Presidency 483–15 Backward Play Stop Forward Download audio Previous 482–9 Next 485–1 More Richard M. Nixon Recordings View all Richard M. Nixon tapes 485–1 audio icon 252–1 audio icon 484–1 audio icon 252–10 audio icon 484–10 audio icon 252–11 audio icon 484–11 audio icon 252–12 audio icon 484–12 audio icon 252–13 audio icon