Keller Automatic Coin Operated Edison Phonograph
Updated July 20, 2026
| Lot number | 3023 |
| Estimate | $50,000 - $100,000 |
| Opening bid | $20,000 |
| Category | Coins & Currency |
| Auction | The Allen Koenigsberg Phonograph Collection |
| Date | July 30, 2026 at 9:00 AM CDT |
| Auction house | Donley Auctions |
| Location | Union, Illinois |
Albert K. Keller was a pioneering inventor and machinist who developed the first highly reliable, commercially ...
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