Sgraffito

Sgraffito ("scratched") is a technique either of wall decor, produced by applying layers of plaster tinted in contrasting colors to a moistened surface, or in ceramics, by applying a ceramic body with two successive layers of contrasting slip, and then in either case scratching so as to produce an outline drawing. A combed wall surface is produced by dragging a comblike tool over a prepared surface, producing stripes or waves.