Pinchbeck, a factitious metal, the colour of which resembles that of gold ; and which has received this appellation from its inventor.—It is produced by melting one part of zinc with five or six parts of copper- ; and it becomes more or less malleable, according to the purity of those metals. Some metallurgists, however, direct equal parts to be melted together ; but Dr. Lewis observes, from his own experiments, that pinchbeck bears a greater resemblance to gold, by employing zinc either in the largest or in the smallest proportion, than by using similar quantities of each ingredient.

Pinchbeck is manufactured principally into cases and chains for watches.