File:First square with M3 2024-04-01 14-07-00.jpg
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Markings in Sharpie on a microscope slide etched with a 1.0mm square enclosing a 0.5mm square. Lower right shows fragment of M3 screw thread with 0.5mm pitch for scale.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 00:20, 1 April 2024 | 1,105 × 912 (143 KB) | VikOlliver (talk | contribs) | Markings in Sharpie on a microscope slide etched with a 1.0mm square enclosing a 0.5mm square. Lower right shows fragment of M3 screw thread with 0.5mm pitch for scale. |
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