Rare Chinese Qing Dynasty, 18th century, 'Imitation Realgar' glass vase, with a slightly spreading lip, cylindrical neck and slightly tapered body, on circular foot, in swirled deep reds and blacks on a pink ground, height 20.5 cm catalogue note: Realgar is a red coloured arsenic sulphide mineral. In china it is known as xionghuang or wuguararang. The glass that imitates realgar started to appear in the palace workshops from the early 18th century. Examples of this glass can be found in the British Museum and in the Qing court collection, Sotheby`s, 8th October 2009, Lots 1801 and 1819, Professor Peter H. Plesch and Mrs Plesch, 8th October 2010, lot 2219, Christies, 14th May 2013, lot 62