The banner of the Wuchang uprising (zh:武昌起义) 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.
Own work based on: 鐵血十八星旗.svg
原作者：共進會（武昌革命黨人、湖北軍政府）