A Guan-Type Square Vase (Cong). Qianlong Seal Mark And Period. Photo Sotheby's 

molded on each side with the 'Eight Trigrams'  between a low flared foot and short waisted neck, all covered in an unctuous gray-green glaze suffused with dark gray crackling, the foot dressed in dark brown, seal mark in underglaze blue. Height 11 1/8 in., 28.2 cm. Estimation: 30,000 - 40,000 USD - Lot. Vendu 116,500 USD

PROVENANCE: Acquired by a U.S. Civil Affairs Officer in Asia between 1945-1946 and thence by descent.

NOTE DE CATALOGUE: Similar vases, catalogued as ge or guan-type were sold in these rooms 4th June, 1986, lot 136 and in our Hong Kong rooms, 23rd October 2005, lot 301 and 8th April 2001, lot 3006.

Sotheby's. Fine Chinese Ceramics & Works of Art. New York | 11 sept. 2012 www.sotheby's.com