Flown entry checklist carried on board Shuttle Challenger mission 51-B from April 29–May 6, 1985. This eight-page, double-sided checklist measures 5.5 x 8, with two divider tabs reading, "MNVR PADS" and "DEORBIT BURN." Checklist has numerous pencil notations throughout in Overmyer’s hand recording important data. There is a large "Microfilmed July 17, 1985" handstamp on the front cover along with a red piece of tape horizontally across the top of the checklist cover. Accompanied by a handwritten certificate of authentication from Mrs. Overmyer that reads, "I found this Entry Checklist in Bob's ‘Flown Box’ He has recorded times and other information in flight while he was Commander of STS-51-B.” Also included is a 51-B commemorative cover signed in black ink by Overmyer. In fine condition. RR Auction COA.
