For other recorded closely related portrait goblets of Prince Willem V by or attributed to David Wolff see F.G.A.M. Smit, Uniquely Dutch Eighteenth-Century Stipple-Engravings on Glass, Peterborough, 1993, pp. 92-93, and for examples in the Rijksmuseum, Amsterdam see P.C. Ritsema van Eck, Glass in the Rijksmuseum, vol. II, Zwolle, 1995, p. 438, no. 556, p. 440, no. 558, p. 442, no. 559.