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| Otis King | |||
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Nov-2007 | |||
| RARE BLACK SCALE OTIS KING SLIDERULE/CALCULATO | $560.00 | 10-Nov-2007 | 20 |
| VINTAGE OTIS KING SLIDE RULE CALCULATOR - PAT. | $66.00 | 05-Nov-2007 | 6 |