For a detailed discussion on this group of scent-bottles with a tentative attribution to the Beilby workshop see Robert Charleston, 'A group of enamelled opaque-white glasses', The Burlington Magazine, May 1990, pp. 328-335. Other examples were sold in these Rooms on 14 June 1983, lots 46 and 47 (Sir Hugh Dawson Collection) and on 24 November 1987, lots 70 and 71