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Podcast: Let Me Google That
Episode:

Indelible Pencils
Category: Science & Medicine
Duration: 00:05:25
Publish Date: 2023-02-19 08:51:16
Description: "Indelible pencils" or copying pencils were popular for a time in the 1870s because they made it possible to easily make copies of handwritten documents. Which would have been great — except they turned out to be poisonous.
Total Play: 0