A Canton enamel snuff bottle, 19th/20th century of upright form, either side painted after Lang Shih-ning (Giuseppe Castiglioni 1688-1766) with a hound dog in a landscape panel, the edges with blue landscape vignettes, all reserved on the floral decorated turquoise ground between formal borders, the base with an apocryphal four-character mark of Qianlong in blue enamel, stopper en suite 6 cm high