Full title: A Chinese sandwiched swirl glass snuff bottle, Imperial Glassworks, Beijing, 1700-1840------- Description: H.: 6 cm? Prov.: - The Hildegard Schonfeld Collection, Christie's, New York, March 21, 2013, lot 1035 (Sold: USD 6.875) - The Bob Stevens Collection (Part III), Sotheby Parke Bernet New York, June 25, 1982, lot 43- Sotheby's, London, March 3, 1987, lot 43