A similar box with shell inlay, from the Musée Cognacq-Jay, Paris, is illustrated in C. Le Corbeiller, European and American Snuff Boxes 1730-1830, London, 1966, no. 51. See also A. Somers Cocks/C. Truman, The Thyssen-Bornemisza Collection. Renaissance jewels, gold boxes and objets de vertu, London, 1984, no. 45, pp. 170-171, for a box incorporating turquoise.