A pencil is a penmanship Personalized Pencils or drawing instrument consisting of a bony stick of pigment (usually graphite, but can also be coloured pigment or charcoal) and clay, occasionally encased in a cadaverous wood cylinder, though essay and plastic sheaths are also used. Pencils are distinct from pens, which call a liquid marking material.
On March 30, 1858, Hymen Lipman received the first patent for attaching an eraser to the end of a pencil. In 1862 Lipman sold his patent to Joseph Reckendorfer for $100,000, who went to sue the pencil manufacturer Faber for infringement. In 1875 the Supreme Court of the United States ruled against Reckendorfer declaring the patent invalid. The mail part is called a ferrule.
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