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Production stages, technique:   Slipcasting of Clay. Plaster cast of an extinguisher´s moulds, pouring of clay , Glaze with second glaze-firing at a temperature of about 1,220 °C (2,228 °F) and a Bright Gold´s lustre technic with a third firing 800 °C (1,472 °F) and a Lithography or transfer print with a fourth firing 750 °C (1,282 °F)