Large flown piece of multilayer insulation blanket carried aboard the Space Shuttle Challenger (OV-099) for six days during the STS-8 mission. The blanket measures 28 x 20.25, features Beta cloth exterior with various snap fasteners, and a gold Mylar interior with parts label affixed to the lower right: “V070-362478-OCN-B81233.” Also present are tape-affixed “Flown Hardware” and “Unserviceable Condemned” tags, with the former reading: “Orbiter No. 99, STS Number 8, Part Name Blanket, Part No. V070-362478-010, Serial No. B81233, Quantity 1, Date 10-27-83.” In fine condition, with some dampstaining to the tags and wear to Mylar corners.