File:Keuffel and Esser-Model 4181-1 Log log Duplex Decitrig slide rule-IMG 5821-white (cropped).jpg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:18, 24 June 2021 | 5,407 × 1,954 (1.17 MB) | Thincat | File:Keuffel and Esser-Model 4181-1 Log log Duplex Decitrig slide rule-IMG 5821-white.jpg cropped 10 % horizontally, 51 % vertically using CropTool with lossless mode. |
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