ANONYME, The Excellency of the Pen and Pencil, Exemplifying The Uses of them in the most Exquisite and Mysterious Arts of Drawing, Etching, Engraving, Limning, Painting in Oyl, Washing of Maps & Pictures. Also the way to Cleanse any Old Painting, and Preserve the Colours. Collected from the Writings of the ablest Masters both Ancient and Modern, as Albert Durer, P. Lomantius, and divers others. Furnished with divers Cuts in Copper, being Copied from the best Masters, and here inserted for Examples for the Learner to Practice by. A Work very useful for all Gentlemen, and other Ingenious Spirits, either Artificers or others, London, Dorman Newman, 1688.1 quotations
1. Sallow coals split into the forms of Pencils, which you may best have of those that sell Charcoal ready burnt for your use ; these are to be prepared by sharpning them at the point ; their use is to touch over your Draught lightly at the first : you may know Sallow coals from others by the fineness of their grain.