AN INSCRIBED JADE THUMBRING WITH IMPERIAL POEM YUZHI MARK AND PERIOD OF QIANLONG

the tubular ring with a slightly bevelled top and a rounded base, carved in intaglio on the exterior with an imperial poem, followed by the characters Qianlong yuzhi ('by the Imperial Command of the Qianlong Emperor') and the qian trigram seal, all between key-fret borders, the opaque white stone with areas of caramel tone and natural white surface patina

The overall condition is quite good. There is some minor nibbling along the tapered edge of the ring. The calcification in the stone does not obscure the inscription.
"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."

Translation of the Chinese poem:

As with horn and ivory carvings, passed down from ancient times;
looking again in appreciation of this piece of beautiful jade.
Its interior is hollowed;
the exterior, carved like the fullness of the moon.
How can this be worn just as a ring,
when it can also be used in archery.
Anyone wearing this, will be sure to attain their target;
what a magnificently perfect combination.

See a similar thumbring inscribed with the same poem between key-fret bands sold in Christie's Hong Kong, 27th May 2008, lot 1534.