1981 United State Proof Set
Updated September 25, 2026
| Lot number | 71 |
| Category | Coins & Currency |
| Auction | Alpen Treasures Estate Grabs |
| Date | October 1, 2026 at 7:00 PM CDT |
| Auction house | Alpen Treasures |
| Location | Albia, Iowa |
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