Flown debriefing notes made by Bob Overmyer carried on board Shuttle Challenger mission 51-B from April 29–May 6, 1985. Pencil notations are on three 5 x 8 off-white cards and correspond to two printed pages of "WCS Debriefing" questions covering Feces and Urination Collection and restraint systems. Overmyer makes notes on the “Food system,” including “Lots of rehydratables very difficult to fill,” and “Eating off of locker doors very bad.” Other notations are about the WCS including “No last drop problem using individual caps with offset hole works well.” Accompanied by a handwritten certificate of authentication from Mrs. Overmyer that reads, "I found these notes in Bob's ‘Flown Box.’ He took notes in orbit so he could report at debriefing.” In fine condition. RR Auction COA.