PU RU (PU XIN YU) (CHINESE, 1896-1963) TWO CHARACTER CALLIGRAPHY IN RUNNING SCRIPT- FLEETING BIRD Ink on paper: 11 1/2 x 26 in. Left side in Chinese script: dated 1957 and signed: Pu Xin Yu; and with two seals Provenance: A gift from the artist to Wen...