The Columbia Encyclopedia, Sixth Edition. 2001-07.
silverpoint
method of drawing whereby a silver-tipped instrument is dragged across paper prepared with ground bone dust and gum water and then tinted with a pigment. The procedure results in drawings of extraordinary delicacy. It was used extensively in Europe from the late Middle Ages to the early 16th cent. The silverpoint instrument was a silver thread encased in wood, similar in design to a modern lead pencil. Among the foremost practitioners of the medium were Leonardo da Vinci and Albrecht Dürer.
