About this recording 3–185 President Richard M. Nixon White House operator May 28, 1971 White House Operator Richard M. Nixon Conversation No. 3-185 Date: May 28, 1971 Time: Unknown between 6:50 pm and 8:11 pm Location: White House Telephone The President talked with the White House operator. Call to Tricia Nixon Secret White House Tapes | Richard M. Nixon Presidency 3–185 Backward Play Stop Forward Download audio Previous 504–9 Next 507–1 More Richard M. Nixon Recordings View all Richard M. Nixon tapes 507–1 audio icon 3–190 audio icon 3–191 audio icon 507–2 audio icon 507–3 audio icon 507–4 audio icon 507–5 audio icon 507–6 audio icon 507–7 audio icon 254–10 audio icon