About this recording 6–176 President Richard M. Nixon White House operator H. R. Haldeman July 21, 1971 White House Operator H. R. Haldeman Richard M. Nixon Conversation No. 6-176 Date: July 21, 1971 Time: Unknown between 2:56 pm and 4:40 pm Location: White House Telephone The President talked with the White House operator; H.R. (“Bob”) Haldeman can be heard in the background. Call to Congressman George H. Mahon 94 NIXON PRESIDENTIAL MATERIALS STAFF Tape Subject Log (rev. 10/08) Secret White House Tapes | Richard M. Nixon Presidency 6–176 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