Winthrop had hoped to make a fortune mining the area for lead and iron. While the mine's supply dwindled, its history ultimately cannot be erased, leading to the creation of one of the most iconic ...

Even with our modern writing technogies, putting pencil to paper remains ... packaged set National Museum of American History Box of American Lead Pencil Co. Venus Pencils National Museum of American ...

The pencil “lead” is actually a mixture of graphite and clay. More clay in the mixture makes the lead harder. A harder lead has a higher number. Pencils are numbered from 1-3 but most people use a ...