Tenmoku
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Tenmoku is a type of glaze that originates in imitating Chinese Jian ware of the southern Song dynasty, original examples of which are also called tenmoku in Japan.
Jian ware tea bowl shapes are conical in form with a slight indent below the rim.... Wikipedia
Jian Zhan(Tenmoku) tea cup in Western and Japan, is for tea lovers or fine art collectors. Preserve the heat for a long...