X-15 Cover Collection - Some Pilot Signed
Updated August 20, 2026
This auction ended on August 29, 2026.
See upcoming auctions from Bid Again Auctions (American Space Museum).
| Lot number | 0029 |
| Estimate | $100 - $500 |
| Opening bid | $100 |
| Auction | Summer 2026 NASA Space Memorabilia Sale (44) |
| Date | August 29, 2026 at 12:00 PM EDT |
| Auction house | Bid Again Auctions (American Space Museum) |
| Location | Orlando, Florida |
A collection of ten X-15 cover with four that have been hand signed by different X-15 pilots - Robert Rushworth, Joe Engle, Milt Thompson and William Knight. All the covers are in very good to
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