The art of enriching and beautifying gold, silver, and other metal work, by some design or figures represented thereon in low relievo. It is practised only on hollow thin works, as watch cases, etc, and is performed by punching or driving out the metal from the under side, so as to stand out prominent from the plane or surface of the metal. In order to effect this, a number of steel blocks or puncheons are provided of different sizes, and the design being drawn upon the surface of the metal, the workman applies the inside upon the heads or tops of these blocks directly under the lines or parts of the figures; then with a fine hammer striking on the metal sustained by the block, the metal yields and the block makes an indenture or cavity on the inside, corresponding to which there is a prominence on the outside, which is to stand for that part of the figure, and by successive applications of the hammer to the various parts of the design, the whole figure is brought out with a precision and effect which it seems almost impossible to produce by such simple means.