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| Otis King | |||
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Sep-2007 | |||
| OTIS KING CYLINDRICAL SLIDE RULE CALCULATOR | $259.00 | 03-Sep-2007 | 14 |
| Otis King Calculator (Slide Rule) w/box in Gre | $156.50 | 16-Sep-2007 | 21 |
| Otis King Cylindrical sliderule - slide rule | $109.50 | 10-Sep-2007 | 11 |
| "Otis King Round Slide Rule Calculator, Model | $21.50 | 12-Sep-2007 | 3 |