The pen was placed under the Richter Optica S6.7 stereo zoom microscope:
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| S6.7 Stereo Zoom Microscope 6.7x-45x |
This is what the pen grip looks like at 20x magnification:
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| Pen grip under a stereo microscope. |
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| S6.7 Stereo Zoom Microscope 6.7x-45x |
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| Pen grip under a stereo microscope. |
