In 985, while Chonen was in Song China, he commissioned the piece at Kaiyuansi Temple in Taizhou and it is known from the inscriptions and writings on the objects inside that the names of its makers are Yanjiao ZHANG and Yanxi ZHANG.
奝然が宋に滞在中の985年、台州開元寺で作らせたもので、刻銘、納入品等の記載から、張延皎および張延襲という作者の名もわかっている。