Square seal in pale nephrite jade, China, dragon-shaped grip and flamed pearl in clouds, inscription '''''' (Bazheng mao nian zhi bao), 5x5 cm (seal), h. 6.5 cm. Various seals bearing a similar inscription were made between 1789 and 1795 to celebrate the eightieth birthday of the Qianlong emperor (1790)Provenance: Brigitte Mavromichalis collection A similar seal, dated Qianlong, was sold at Sotheby's, October 9, 2007, lot no. 1303. Another, also dated Qianlong, was sold at Christie's, Hong Kong, April 26, 2004, lot no. 1012.

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