Compare with the washer in the form of a five-pointed leaf with the same seal mark but covered with a crackled ge-type glaze, included in the Min Chiu Society Exhibition of Monochrome Ceramics, Hong Kong, 1977, Catalogue, no. 122. Another, also with a Qianlong seal mark and with the addition of a beetle is illustrated in Qing dai ciqi shang jian, p. 173, pl. 227.
A Shiwan example dated Ming is illustrated in Selected Ceramics from the Collection of Mr and Mrs J M Hu, p. 65, pl. 32. Another unmarked dish in the form of a pointed leaf is illustrated in the Eumorfopoulos Collection, Catalogue, vol. 5, pl. LI, no. E311.