Like several of the other known Pronk designs, this scene seems to be drawn largely from the artist's imagination, with a wholly Chinoiserie rendering based loosely on images he had no doubt seen on Chinese porcelains in Holland. The scene's basin, shaped like the kind of large Kraak piece loved by the Dutch, echoes the basin seen in Pronk's 'Doctor's Visit' pattern, as do the borders, the snake and grasses below and even the bird above. The 'Hand Washing' seems to have been made only in these magnificent urns, in blue and white and famille rose as well as in a Chinese Imari palette. See C.J.A. Jorg, Pronk Porcelain, Exhibition Catalogue, Groninger Museum, 25 April - 8 June 1980, pp.32-4. See also Howard & Ayers, op. cit., pp. 292-5, for a blue and white example from the Mottahedeh collection. A slightly larger Chinese Imari version was sold Christie's London, 6 November 1995, lot 27. A famille rose example was sold Sotheby's London, 19 June 2002, lot 137.