= A collection of Tan Shangqin's oil painting artworks Collection of Tan Shangqin's oil painting artworks The collection of Guan Hongchen's oil paintings collection of Chinese oil painting masters Collection of Wang Shuiqing's Chinese painting works The collections of Zhao Shangyi's artistic works Collection of Cao Hui's oil paintings Collection of Guan Hongchen's oil paintings A collection of Lin Guohua's landscape oil painting sketches A collection of Wang Zhenghan's calligraphic works