Pebbled Surface. A background texture of raised dots or tiny hemispheres, each of which is called a BOSS. This form of texture can be made by modeling or by the use of the dapple tool in the negative model or in the die, or by a puncheon with an incuse cupped hemisphere. The Japanese developed this surface to a high degree for tsubas, they called this texture "fish roe surface" (nanako), where the bosses were as small as one-hundredth of an inch diameter. A pebbled surface is the opposite of dappled surface (where the dots are sunken indentations). See dapple tool, dapple surface.
excerpted with permission from
For Artists, Makers, Collectors and Curators
COMPILED AND WRITTEN BY D. WAYNE JOHNSON
Roger W. Burdette, Editor