This shape of pot-pourri vase, designed by Jean-Claude Duplessis (père), was made in four different sizes. The present examples are of the smallest size, which varied in height from about 19 cm. to 20 cm., and with this type of decoration they originally cost 72 livres.
Lazare Duvaux and his wife were the main buyers of this type of pot-pourri vase, and in December 1754 he bought a pair of white pot-pourri vases of the type decorated with flowers for 72 livres each, and he bought another similar pair in early 1758 and sold them to the duchesse de Mazarin. For a full discussion of this shape and other examples, see Rosalind Savill, The Wallace Collection Catalogue of Sèvres Porcelain (London, 1988), Vol. I, pp. 127-135.
The clover-shaped flower painter's mark is listed by David Peters, Decorator and Date Marks on 18th Century Vincennes and Sèvres Porcelain (London, 1997), p. 88, where he points out that the occurence of this mark (circa 1753-60) coincides with the work period of J-J. Sioux.