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| Item# | Type | Model | Model Name | Version | Design Type | Maker | Country | Serial No. | Material | Scale Length | Date | Condition |
| PIK108 | Linear | No. 500 | Ortho-Phase Log Log | | M1B | Pickett | USA | 10C0581 | Magnesium | "10" | 1950-1951 | C5 |
Notes: Basic math slide rule with trig and log log scales. Triangle Pickett logo.
Click on the Condition Code to obtain more details.
