Available to US bidders only. Green angled shuttle fit check tile, 4.5 x 6 x 2, marked “V070391034-468,” with other notations on the same side, including “STS-9-B.” Before crews installed the actual reentry-enabling thermal heat shield, fit-check tiles were fabricated and installed on the orbiter's body. These ‘stand-in’ tiles were then referenced to manufacture their flight-ready counterparts. In fine condition, with scattered marks and dings. RR Auction COA.