1991 Precious metal. Largest: 11.5 x 12 x 10.3 cm (4 1/2 x 4 3/4 x 4 in.) Produced by Artcurial, Paris, France. Number 137 from the edition of 450. Underside of each impressed Cl. Lalanne/ARTCURIAL 137 / 450. Together with certificate of authenticity from Artcurial.