A Kangxi gilt-decorated powder-blue ewer, China, with later Ottoman metal mounts, 18th century

decorated in gilt around the body on a blue ground with floral blossoms and spider webs, the crescent-moon shaped mouth with hinged metal lid topped with red stone, the spout with a long silver mount and dragon-head terminal, both with tughra stamps

In generally good condition, part of the spout must have been broken, and so the additional Ottoman silver-spout would have been added, some of the painted gold designs on the body rubbed off, underside with a firing crack, as viewed.
"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."

This ewer is of a type known to have been made in China for the export market as distinguished by its Persian form. In this case, it is interesting to note that it ended up in the Ottoman Empire as indicated by the metal mounts stamped with tughras. 

A similar example is in the Museum Anastacio Gonçalves in Lisbon (inv. CMAG 330).