Another example of this rare type was sold Christie's, London, 1st June 1987, lot 12. Three dated examples of 1652 (the earliest known dated drug-jar) and 1665 are recorded by Louis L. Lipski and Michael Archer, Dated English Delftware, London, 1984, nos. 1595, 1612 and 1612 A. See also J. K. Crellin, Medical Ceramics in the Wellcome Institute, London, 1969, pp. 17 and 18, Figs. 10-12. S:Nymphae refers to white water-lily, used for stomach complaints and urethritis, and S: Diacodion is made from poppy-heads and other ingredients.