ENGRAVING - Indenting spaces into clay to form a design or texture.
Engraving: is to cut and indent into clay to form a design or texture. The clay can be at any stage of drying and the harder the clay, the sharper the lines. This type of decoration was traditionally covered and fired with a colored transparent glaze and as the glaze is thicker at the indented parts, it deepens the color. It is also known as incising. Read more about: Incising