LITTLE KNOWN FACTS ABOUT BIG PENCIL CASE.

7. the initial pencil sharpener was a knife, duh. In 1828, a French mathematician obtained a patent for any sharpener that experienced two steel data files embedded inside a bit of wood. It wasn’t a lot better than the usual knife. But in 1837, two Englishmen began offering the same “patent pencil pointer” they known as the Styloxynon. Pi