An archaic bronze 'four dragons' mirror, Late Eastern Zhou-Warring States Period. Photo courtesy Bonhams

Cast in the form of a circular disc, decorated with four 'S'-shaped archaistic dragons dividing raised bosses on a swirling ground, encircling a domed knop at the centre within a band of raised 'half-moons' at the border. 9.8cm diam. Estimate HK$ 15,000 - 25,000 (€1,400 - 2,400)

A similarly decorated bronze mirror with four dragons motif dated to the Eastern Zhou/Warring States Period in the Carter Collection was exhibited in the Cleveland Museum of Art, Ohio. See Circles of Reflection: The Carter Collection of Chinese Bronze Mirrors, Cleveland, 2000. 

Bonhams. FINE CHINESE CERAMICS AND WORKS OF ART. Hong Kong. 24 Nov 2013