Using additions of metal oxides for the reds, blacks and blues, the coloured clay layers are brushed on the slip cast vessel or inlaid in incised lines and marks. The surface marks are created using various sgraffito tools when the clay vessel is in a leather-hard state. Rowena bisque fires, then masks areas on the outside of the vessel using wax resist, glazing the inside and the unmasked areas with a transparent gloss with the final firing at 1160°C. All pieces are hand made and have Rowena's signature mark on the base.
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