Scratching is to scrape outlines, shapes and textures into dry or soft clay. When finished, sweep it with a large soft brush and clean and level it off with a flexible kidney. It can be decorated in two ways, covered with a colored slip or transparent glaze. The shadows, caused by the indents, will bring out the pattern or the indents can be filled up with a colored slip. When dry they are leveled out and the clay round them cleaned of any slip. It is then all painted with transparent glaze.
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