Sake Bowl (Ancient Chinese Pattern) in Treasure Box - Mumyoi Sake Bowl (Ancient Chinese Pattern) in Treasure Box - Mumyoi $65.00 The Eyes of Heaven glaze on this sake bowl is formed when particles of silver in the clay migrate to the surface during firing. The shape is from ancient northern China. The diameter of the bowl is 3?, and it is sent in a hand made Kiri Wood (Paulownia tomentosa) treasure box. About Sado Island Mumyoi Ware Mumyoi (pronounced moomyoee) is a type of pottery made from Mumyoi Clay,