Title: 乾坤清氣
Subjects: Exhibitions, Chinese Painting, Chinese Calligraphy, History, Painting, Gu gong bo wu yuan (China), Shanghai bo wu guan
Places: China, Beijing, Shanghai
People: Wei Xu (1521-1593), Chun Chen (1483-1544)
Time periods: Ming-Qing dynasties, 1368-1912