Before there were retroreflective coatings on road signs, some places used retroreflective dots to trace the letters and shapes.

  • CrayonRosary@lemmy.world
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    1 month ago

    For some reason my lemmy client, Thunder, can’t display that image from Wikipedia, but the URL is correct. I can open it in a browser.

    Reuploading it to Lemmy in case others have the same issue.