Indelible Pencils
Let Me Google That - Ein Podcast von Let Me Google That - Sonntags
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"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. --- Support this podcast: https://podcasters.spotify.com/pod/show/letmegooglethat/support
