An unusual copper-red glazed jar, Qianlong six-character sealmark in underglaze-blue and possibly of the period (1736-1795). Photo Christie's Image Ltd 2014

The jar is of rounded globular shape, covered in an attractive dark-red bubble-suffused glaze thinning to white at the mouth rim. 5 ? in. (13.6 cm.) wide. Estimate £7,000 – £10,000 ($11,753 - $16,790)

Christie's.THE C. PHILIP CARDEIRO COLLECTION OF CHINESE ART, 13 May 2014, London, King Street -  http://www.christies.com/