Two bronze mirrors. Tang Dynasty. photo Bonhams

Each of circular shape, the first fitted with a gilt repoussé sheet decorated with an outer band of birds and grapevines under a central band of leaping hounds and vines, plain pierced boss, the second cast with an outer grapevine and bird meander under a central band of leaping mythical beasts enclosed by a raised band with sawtooth edge, both with heavy malachite patina; 4 and 4 3/4in (10 and 12cm) diameter. Sold for $3,904

Provenance:  Ching Wah Lee, San Francisco (the first)

Exhibited: Treasures of the Orient, Society for Asian Art, Golden Gate Park, San Francisco, 1979 (the first)

Bonhams. Fine Asian Works of Art, 13 Dec 2010, 220 San Bruno Avenue, San Francisco www.bonhams.com