Copying pencil Copying pencil A copying pencil, also indelible pencil or chemical pencil, is pencil whose lead contains a dye. The lead is fabricated by adding a dry water-soluble permanent dye to powdered graphite—used in standard graphite pencils—before binding the mixture with clay. Copying pencils were introduced in the 1870s and were originally marketed for copying documents, especially for making permanent copies of a permanent original. This was achieved by creating a hand-written document using a copying pencil, laying a moist tissue paper over the document and pressing down with a mechanical press. The water-soluble dye in the writing would be transferred
Pencil Full of Lead disco stick. He does, however, mention having a pencil full of lead, and if I'm not mistaken, that's a saucy metaphor. Either that or he's been sold a lot of lead-less pencils in his time, and after all, what is a pencil without lead but a stick? The music video for the song was added to YouTube on 20 October 2009. The video is set in a television studio and opens with a view from the control room. The performance begins with a coloured clay model of Nutini singing amongst an all-female band of real musicians and dancers. He starts