AN INSCRIBED 'EIGHT IMMORTALS' CELADON JADE SCREEN CARVING: MING DYNASTY, 17TH CENTURY INSCRIPTION: QING DYNASTY, QIANLONG PERIOD

the rectangular slab of celadon tone with natural veins and inclusions, one side carved in low relief with four immortals standing on floating clouds, above two deities on a boat, sailing towards a balustered terrace with two further immortals, the reverse incised with an imperial poem in xingshu calligraphy by the Qianlong Emperor titled Yuzhi ti Mianyi Suichao tu ('Imperial inscription for the New Year Painting by Mianyi'), signed chen Yongxing jing shu ('Respectfully written by official Yongxing'), followed by two square seals reading chen and xing

Acquired in Paris between the 1970s and the early 90s.

The edges have some old nicks and bruises, including a 0.8 x 0.5 cm chip to the bottom left corner. The overall condition is otherwise very good.
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective, qualified opinion. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."

Yongxing (1752-1823) was the name of Prince Chengzhe, the 11th son of the Qianlong Emperor, and the younger brother of the Jiaqing Emperor.  He served in the military council and treasury of the Jiaqing court.  He was also a noted calligrapher.