Lunar flown double-sided page from the Apollo 16 Lunar Module Timeline Checklist carried to the surface of the moon aboard the LM Orion, 10.5 x 8.5, consisting of pages 5 and 6, dated March 1972, and lengthily signed and flight-certified on the front side in blue ink, "This page is from the Apollo 16 LM Timeline Checklist and shows a test of our computer with our first descent program P63 up thru a data uplink from MSFN (Manned Spaceflight Network), Charlie Duke, Apollo 16 LMP," and on the reverse, "This page from our LM Timeline Checklist shows the procedures for the initialization of the AGS (Abort Guidance System) to PDI (Powered Down Initiation). Charlie Duke, Apollo 15 LMP.” Above, he adds: “This page was on the moon surface and exposed to the vacuum of space on our three lunar EVAs during our 72 hours on the moon.” Page 5, with bottom tab, "P63 IGN ALGO to MSFN Uplink," shows the various time integrals and procedures used for the ignition algorithm test. The reverse side, page 6, with top tab, "AGS Initialize to PDI," features a box marked “Go-Around,” which lists steps: “Secure Systems, Align IMU, MSFN Update, MSFN Uplink, Configure COMM for LOS, and Pick Up with P63 Ignition Algorithm Test, P. 5.” In fine condition. Accompanied by a signed certificate of authenticity from Duke, dated April 25, 2017, in part: "This checklist…was carried to the surface of the moon onboard the Apollo 16 Lunar Module 'Orion.' It was part of our Lunar Module Timeline Checklist which we used to activate and power up our lunar module systems…this extraordinary checklist page from my personal lunar artifact collection bears silent witness to mankind's first journey to, and exploration of, the magnificent lunar highlands!"
Terms and abbreviations used in our descriptions.