A MAGNIFICENT AND EXTREMELY RARE IMPERIAL FAMILLE ROSE-ENAMELED GLASS SNUFF BOTTLEIMPERIAL, PALACE WORKSHOPS, BEIJING, QIANLONG FOUR-CHARACTER INCISED SEAL MARK AND OF THE PERIOD (1736-1795)The bottle is superbly enameled on either side with a shaped panel, one with a scene of two birds perched on flowering branches, the other with two butterflies flying amidst flowers, all reserved on a gilt ground.2 in. (5 cm.) high, gold stopper