Flown solid rocket booster circuit board carried on board the shuttle Columbia during mission STS-5. Board measures 6.5 x 4.25, and is labeled “CVRD…SN: 166A,” along one edge. Board was removed after ocean retrieval in February of 1983 by USBI, and is accompanied by three carbons of the NASA flight hardware paperwork, filled out in a technician’s hand noting, “Flown on STS 5 requires bench testing.” In fine condition. RR Auction COA.