Salt fired cup with red slib bottom, black slib line work and a variation of glazes including celadon.
What is salt firing in ceramics?
Salt firing is a vapor-glazing process where salt (sodium chloride) is introduced into kiln firebox at high temperature. The salt vaporizes, and sodium vapor combines with silica in clay surface, forming extremely hard sodium-silicate glaze.
8 cm wide and 7 cm high.