A Chinese Export Reverse-Painted Mirror Picture, Circa 1770. Photo Sotheby's
within a black-japanned frame. Frame 19 1/4 in. by 31 in. 49 cm; 78.7 cm - Estimate 20,000-30,000 USD
Sotheby's. Property from the Estate of Brooke Astor. New York | 24 sept. 2012 www.sothebys.com