6 early CHARLES IRWIN single-twist auger bits
Updated August 26, 2026
This auction ended on September 12, 2026.
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| Lot number | 228 |
| Auction | Antique Tool Auction, St. Charles, MO |
| Date | September 12, 2026 at 3:00 PM CDT |
| Auction house | Great Planes Trading Co. |
| Location | Decatur, Indiana |
Scarce to rare group of six early CHARLES IRWIN single-twist auger bits that are faithful to the Apr. 19, 1887 patent drawing, all are very good.
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