What’s Inside Blue Ballpoint Ink?
(via Wired) Patents for ballpoint pens go back to the late 1800s, but it took half a century to develop
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pens
What’s Inside Blue Ballpoint Ink?
(via Wired) Patents for ballpoint pens go back to the late 1800s, but it took half a century to develop
Read more
Dip pens made from copper piping
Rob Beschizza at boingboing found these great copper pipe dip pens… marrying two wonderful things together: writing pens and modern
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