Melissa Gabardi, Jean Desprs: maestro orafo tra art déco e avanguardie, Milan, 1999, p. 139, fig. 259, p. 142, fig. 264, pp. 156-57, figs. 282-83 for similar examples
Melissa Gabardi, Jean Desprs: Jeweler, Maker and Designer of the Machine Age, London, 2009, pp. 131, 143 for similar examples