A Chinese small enamelled glass vase

A Chinese small enamelled glass vase, delicately painted with flowers, bamboo and rockwork, with a butterfly and other insects in flight, the rim with purple flowers on a yellow band, the base with a four character Qianlong mark in blue enamel within a double square and possibly of the period, 11.2cm. Provenance: purchased in Hong Kong, 1st half 20th century. Cf. The Complete Collection of Treasures at the Palace Museum, p.208, no.200 for a water container with related decoration. Christie's London, 6th November 2004 lot 535 for a related water pot.