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| Otis King | |||
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Jan-2008 | |||
| Otis King's Pocket Calculator Slide Rule U6307 | $162.50 | 10-Jan-2008 | 17 |
| OTIS KING cylindrical calculator slide rule mo | $113.61 | 06-Jan-2008 | 14 |
| Otis King's Scale #429 Pocket Calculator Slide | $102.50 | 22-Jan-2008 | 8 |
| Otis King Pocket Calculator Rotary Slide Rule | $60.00 | 27-Jan-2008 | 11 |