“Cartier Art Deco Gemstone’ Le Ciel ‘mystery Clock, 1928. Signed Cartier Paris Londres New York, numbered, with French assay mark. Photo courtesy of Sotheby’s
“Cartier Art Deco Gemstone’ Le Ciel ‘mystery Clock, 1928. Signed Cartier Paris Londres New York, numbered, with French assay mark. Photo courtesy of Sotheby’s