1978 Soyuz 31 Valery Bykovsky & Sigmund Jähn Signed Baikonur Presentation Certificate,
Updated August 24, 2026
This auction ended on September 3, 2026.
See upcoming auctions from Kelleher Auctions LLC.
| Lot number | 494 |
| Estimate | $400 - $600 |
| Auction | Session 2 |
| Date | September 3, 2026 at 11:00 AM EDT |
| Auction house | Kelleher Auctions LLC |
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