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| Otis King | |||
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Oct-2007 | |||
| "OTIS KING SLIDE RULER/CALCULATOR - MODEL ""L" | $147.50 | 24-Oct-2007 | 12 |
| Otis King Calculator (Slide Rule) in Mint Cond | $114.27 | 31-Oct-2007 | 7 |
| Otis Kings Pocket Calculator Slide Rule | $102.50 | 11-Oct-2007 | 12 |
| vintage slide rule calculator otis king's spir | $94.85 | 12-Oct-2007 | 17 |