English: The banner of the Wuchang uprising (zh:武昌起義) of October 10, 1911, subsequently used as the flag of the army of the Republic of China, ca. 1913-1928. It appears on many varieties of Chinese currency issued during the 1910's and 1920's.
PD-PRC-exemptPublic domain in the People's Republic of China//commons.wikimedia.org/wiki/File:%E9%90%B5%E8%A1%80%E5%8D%81%E5%85%AB%E6%98%9F%E6%97%97.svg