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 Backward Play Stop Forward Download audio Previous 540–9 Next 542–1 More Richard M. Nixon Recordings View all Richard M. Nixon tapes 542–1 audio icon 66–1 audio icon 543–1 audio icon 266–1 audio icon 542–10 audio icon 542–11 audio icon 542–12 audio icon 542–13 audio icon 6–182 audio icon 6–183 audio icon