It is rare to find existing matching bronze lids on vessels of this type. An example with its lid is in the Compton Verney House Trust, included in the exhibition, China: The Three Emperors 1662-1795, Royal Academy of Arts, London, 2005-6, and illustrated in the Catalogue p. 287, no. 203. A number of comparable bianhu have been published without their lids which may suggest that some of these covers may have been made from degradable or fragile materials such as wood or pottery. The first is dated to the Warring States period excavated in 1975 at Sanmenxia Shangcunling, Henan province, now in the Henan Provincial Museum, illustrated in Zhongguo Wenwu Jinghua Dacidian, Qingtong juan, Shanghai cishu chubanshe, 1995, p. 241, no. 864. An example from the Mount Trust, dated to the 4th century BC, is illustrated by W. Watson, Ancient Chinese Bronzes, Faber and Faber, London, 1962, pl. 67b; and a bianhu in the Shanghai Museum dated to the late Warring States period, 3rd century BC, and included in the exhibition, Zhongguo Qingtong Qi, Wuzhou quanbo chubanshe, 2004, p. 118. Another example was included in the exhibition, Beauty and the Selfless Mind, The 15th Anniversary Catalogue, Idemitsu Museum of Arts, 1981, and illustrated in the Catalogue, p. 249, no. 1075.