"One of the most highly respected of Fourrier's craftsmen was the engraver Hubert who brought to life the birds and flowers which he embellished."
Hans Nadelhoffer, Cartier, Thames & Hudson, London, 2007, page 98
Cf. ed. Géza Von Habsburg, Fabergé:Cartier, Rivalen am Zarenhof, Kunsthalle der Hypo-Kulturstiftung, Munich, 2003, No. 674
Cf. El Arte de Cartier, Resplandor del Tiempo, Landucci, Mexico, 1999, No. 513