About this recording 637-15 President Richard M. Nixon Alexander P. Butterfield December 10, 1971 Alexander P. Butterfield Richard M. Nixon Conversation No. 637-15 Date: December 12, 1971 Time: Unknown between 12:06 pm and 12:22 pm Location: Oval Office The President met with Alexander P. Butterfield. The President's schedule Butterfield left at an unknown time before 12:22 pm. Secret White House Tapes | Richard M. Nixon Presidency 637-15 Rewind 10 seconds Play/Pause Fast-forward 10 seconds 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