Copying pencil the wound. Such risks are not associated with ordinary graphite pencils. While these symptoms may appear after a couple of days they often develop only after weeks have passed since the injury was sustained. Surgery is required to remove the dye and the infected tissue and "the necrotizing action may be so severe and extensive amputation is necessary". 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
Lead single Lead single A lead single is usually the first single to be released from a studio album, by a musician or a band, before the album itself is released. During the era of the phonograph record, all music arrived in the marketplace as what is now termed a single, one potential hit song backed by an additional song of generally less commercial appeal on a single ten-inch 78 rpm shellac record. After the launch of the long-playing microgroove record in 1948 and the arrival of the 45 rpm single the following year, singles continued to appear separately from albums into