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
8. Have alwayes in a readiness by you the Crumbs of fine Manchet or White-bread ; the use whereof is, when you have drawn any thing with Black-lead that disliketh you, you may strew some of these Crumbs upon the defective member, and with a linnen cloth rub it hard upon the defective place, and it will fetch out the Black-lead, and leave the Paper or Parchment fair and white. It is also usefull when you have finished a piece, either Head, Leg, Arme, or whole Bodie with Black-lead, and would trace it over with Ink to finish it, the Black-lead will be seen in many places, being thicker then the line of your Pen ; wherefore when you have finished your Drawing with Ink, and that dry, rub it over with these Crumbs, and it will not only take off the superfluous Black-lead, but all other spots of your Paper.