a significant artifact listing activity just after man's landing on the moon.
The Typed Letter Signed by Buzz Aldrin reads in part: "this sheet, was carried to the surface of the Moon in Lunar Module 'Eagle' during the first lunar landing on July 20, 1969. This sheet has the important steps Neil Armstrong and I performed to properly configure 'Eagle' to support the first Extravehicular Activity (EVA) or moon walk by men from the planet earth.
"Neil and I had just completed a simulated countdown in case we needed to leave the Moon two hours after landing. We then requested and received concurrence from Mission Control to begin the lunar surface exploration about 6 hours ahead of schedule. Neil and I needed to secure 'Eagle' for the EVA with the steps listed on SUR-21. Those procedures included configuring control values and setting switches such as 'MASTER ARM' to 'OFF,' then 'STAGE' to 'SAFE,' Neil's Thrust/Translation Controller Assembly (TTCA) to 'JETS Down,' and resetting both 'Eng STOP' and 'Eng START.'
"Side SUR-22 has other important steps to prepare Eagle for our EVA. Switch settings include 'ENG(ine) ARM' to 'OFF' and 'ATT(itude)/TRANSL(ation)' to '4 JETS' then 'ABORT' to 'Reset' and 'ABORT STAGE' to the guarded reset position. Additionally the 'DES(cent) ENG(ine) CMD (command) OVRD (override)' to 'OFF.' Just about four hours from the completion of these steps, Neil Armstrong and I became the first humans to walk on another celestial body.
"I have written on side SUR-21: 'Used by Neil and myself while on the lunar surface during Apollo XI, Buzz Aldrin.' On side SUR-22, I have written: 'Flown to the lunar surface on Apollo XI' and signed it along the right side of that page."