Lot Essay
'Mirror-black' is mentioned by Père de'Entrecolles, who was at Jingdezhen in 1720, as a high temperature glaze coloured with low-grade Chinese cobalt (an iron-manganese-cobalt mixture). See another mirror-black-glazed vase, dated to the Kangxi period, from the collection of Professor E. T. Hall, sold at Christie's London 7 June 2004, lot 193.