无底价专题 NO-RESERVE AUCTION 22 尹朝阳 / YIN ZHAOYANG (b.1970) 广场 TIANANMEN SQUARE 2007 年 纸本 水彩 watercolor on paper 1 3 64×95 cm. 25 /4×37 /8 in 签名:朝阳 2007 signed in Chinese and dated 无底价 No Reserve