173. 173Y CARTIER, NEW YORK: ENAMEL, MOTHER-OF-PEARL, CORAL, ONYX AND DIAMOND DESK CLOCK, CIRCA 1930 Designed as a vertical screen, the rectangular dial set with white mother-of-pearl 'turbo marmoratus' and 'pinctada margaritifera' marquetry, the Roman numeral hour-markers decorated with black enamel and set with rose-cut diamonds, the matching hands, in a yellow gold, white mother-of-pearl and black enamel rectangular case decorated with 'corallium rubrum' coral sticks, supported by two onyx arches on a yellow gold and black enamel pedestal, mechanical movement signed Longines no.2978568, signed Cartier N.Y, numbered, French hallmarks for 18K gold (750°/00), master hallmark for Maurice Couët, with winding key, height 17.00 cm, width 11.60 cm, depth 8.40 cm, gross weight 2285.98 g. Provenance: Christie's Geneva, Thursday 21 May 1992, lot 744, see sale catalogue 'Jewellery by Cartier', pages 158-159. See 'Cartier', Hans Nadelhoffer, Editions du Regard, pages 48 and 58, 1984. See 'Le temps de Cartier', Jader Barracca, Giampiero Negretti, Franco Nencini, page 177, Fondation Cartier pour l'art contemporain, 1989. Please note that this lot is subject to CITES restrictions for export outside the European Union. CARTIER NEW YORK: ENAMEL, MOTHER-OF-PEARL, CORAL, ONYX AND DIAMOND TABLE CLOCK, CIRCA 1930 Designed as a vertical screen, the rectangular dial inlaid with 'turbo marmoratus' and 'pinctada margaritifera' white mother-of-pearl, to rose-cut diamonds set black enamel Roman hour numerals and hands, within a mother-of-pearl and black enamel rectangular case, decorated with 'corallium rubrum' coral batons, supported by two onyx arches on a pedestal of yellow gold and black enamel, mechanical movement signed Longines no.2978568, signed Cartier N.Y, numbered, French assay marks for 18 carat gold, maker's mark for Maurice Couët, accompanied by the winding key, height 17.00 cm, width 11.60 cm, depth 8.40 cm, gross weight 2285.98 grams. Provenance: Christie's Geneva, Thursday 21 May 1992, lot 744, see auction catalogue 'Jewellery by Cartier', page 158-159. See 'Cartier', Hans Nadelhoffer, Editions du Regard, pages 48 and 58, 1984. See 'Le temps de Cartier', Jader Barracca, Giampiero Negretti, Franco Nencini, page 177, Fondation Cartier pour l'art contemporain, 1989. Please note, this lot will be subject to CITES regulations if exported outside the European Union.