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| Otis King | |||
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Jul-2008 | |||
| VINTAGE OTIS KING POCKET CALCULATOR SLIDE RULE | $315.00 | 01-Jul-2008 | 9 |
| OLD OTIS KING SLIDE RULE CALCULATOR MODEL L N/ | $177.50 | 08-Jul-2008 | 11 |
| Otis King Calculator/Slide Rule- England | $110.00 | 24-Jul-2008 | 11 |
| VINTAGE OTIS KING SLIDE RULE CALCULATOR MODEL | $100.01 | 14-Jul-2008 | 7 |
| Otis King Slide Rule Calculator in Box Model K | $86.00 | 13-Jul-2008 | 6 |