Literature
Vivienne Becker, Art Nouveau Jewelry, E.P. Dutton, New York, 1985, page 63
A. Kenneth Snowman, The Master Jewelers, Harry N. Abrams, Inc., New York, 1990, page 146
Henri Vever, French Jewelry of the Nineteenth Century, Thames and Hudson, London, 2001, pages 1124, 1172