An unusual Chinese 'Fenqing' celadon glaze 'Gu' shaped alter vase, Qing dynasty, 18th-19th century, in an archaic 'Gu' shaped form with wide trumpet shaped mouth, the whole body covered with a nice light green glaze, the upper section with trace of painted figures and a band of key fret patterns, the middle section with trace of lotus motifs, three character under-glazed blue 'An Yun Guan' mark within double square around the centre section, 23.5 cm high. Provenance: An old Melbourne private collection