40. * (25583835/9) JULIO GONZÁLEZ (1876-1942) Unfinished mask wrought copper Made circa 1918 21 x 15 cm. 8 1/4 x 5 7/8 in. This work is unique. This work is unique. Provenance Collection Roberta González, Paris (daughter of the artist). Collection Carmen Martínez & Viviane Grimminger, Paris. Private collection, (acquired from the latter in the early 1990s). Sale, Sotheby's, London, 27 February 2019, lot 218. Private collection, Europe (acquired in this sale). Provenance J. Merkert, Julio González, Catalogue raisonné des sculptures, Milan, 1987, no. 36, (illustrated p. 34). T. Llorens Serra, Julio Gonzalez, Catálogo general razonado de las pinturas, esculturas y dibujos 1900-1918, vol. I, Madrid, 2007, no. 563, (illustrated p. 508).