Cartier, Compact 'Koi and Dragon', ca. 1930, carved jadeite, cabochon sapphires, enamel, carved coral, diamonds, mirrored plate glass, gold. L x W x D: 7.3 × 7 × 2.4 cm. French assay marks; Cartier, Paris londres, New York; Made in France; 0940. Lent by Private Collection. © Cooper Hewitt