Flown two-sided checklist page carried on board STS-6, 10.5 x 8, dated March 28, 1983, signed and flight-certified on one side in blue ballpoint, "Flown on STS-6, From my personal collection, Paul Weitz, CDR." Consisting of pages "4-13" and "4-14," with the former listing the activity relative to the inertial measurement unit alignment preceding the crew sleep activity and for the exclusive attention of the commander, Weitz, and pilot, Karol J. Bobko. In fine condition, with light curling.