"Sue pottery (須恵器, sueki, literally offering ware) was a blue-gray form of stoneware pottery fired at high temperature, which was produced in Japan and southern Korea during the Kofun, Nara, and Heian periods of Japanese history. It was initially used for funerary and ritual objects, and originated from Korea to Kyūshū. Although the roots of Sueki reach back to ancient China, its direct precursor is the grayware of the Three Kingdoms of Korea." - (en.wikipedia.org 25.12.2021)
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