See Una de Fontaines, Wedgwood Fairyland Lustre, New York, 1975, p. 198, fig. 87 for a line drawing of the 'Tree Serpent' pattern and p. 199, plate 44 for a very similar vase. Like fig. 87, our version features a yellow baby perched on a blue topped purple rock. See an anonymous sale, Christie's South Kensington, 10 June 1997, lot 262 for a similar vase.