Circuit board possibly carried on the SRB of Space Shuttle Columbia’s STS-4 mission. Intricate circuit board measures 6 x 4 and is accompanied by two carbons of a Currie Systems parts sheet, identifying the part as “CVRD,” from project “SRB,” and stamped at the bottom, “Flight Hardware.” Also accompanied by a photocopy of a test preparation sheet. In fine condition. RR Auction COA.
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