A Chinese rectangular 'bookcase' cloisonné enamel box with hinged cover, Qianlong, finely worked in the form of a book, all raised on a staged pedestal, decorated with key fret pattern reserved on a turquoise ground, with later added lock and hinge adapted for modern use, 16.5cm x 9.8cm x 4.8cm   See a similar cloisonné box at the Palace Museum, Beijing, illustrated in Yongle wen yuan - exhibition of qing court scholar art, Macao Art Museum, 2007, pp 259   清乾隆 掐丝珐琅书卷式盒