Full title: A rare Chinese biotite-sandwiched green glass snuff bottle, Imperial Glassworks, Beijing, 1720-1840------- Description: H.: 6,5 cm? The stopper made of pink glass.? Prov.:- The Hildegard Schonfeld Collection, Christie's, New York, March 21, 2013, lot 1006 (Sold: USD 4.000) - William Doyle Galleries, New York, 26 October 1983, lot 45.