18TH CENTURY-EARLY 19TH CENTURY

The fine material used in this carving is similar to the lapis lazuli found on other 18th-century imperial carvings. See a Qianlong-period lapis lazuli seal in the Qing Court Collection illustrated in The Complete Collection of Treasures of the Palace Museum - 30 - Ancient Seals, Hong Kong, 2008, p. 221, no. 407, with similar material to the present carving.