About this recording 3–173 White House operator UNKNOWN May 28, 1971 White House Operator Unknown Conversation No. 3-173 Date: May 28, 1971 Time: Unknown between 11:04 am and 12:20 pm Location: White House Telephone The White House operator talked with an unknown person. Call request Secret White House Tapes | Richard M. Nixon Presidency 3–173 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