Three samples of spacecraft structure and thermal protection system materials. A 2.5 x 3 sample of crushable footpad; a 2.5 x 3 wedge of ablative material, and a 1 x 2.25 portion of honeycomb bulkhead. All three are affixed to an 11 x 9 board along with an engraved plaque. In fine condition. All three of these materials would be used to protect a space vehicle from the high temperatures encountered during re-entry. RR Auction COA.