Ink and watercolor on paper, executed ca1976 by 

Chinese artist Zhao Chunxiang (Chao Chung-Hsiang) (1912 - 1991), 

signed 'with the artist's red seal, 'Chao.'

Measurements:

Mat opening: 19 by 17 -3/4 inches, [483 by 451 mm].

Frame: 26 -1/2 by 25 inches, [673 by 635 mm].