Kai Yuan Tong Bao / Blank. Local mints in Hunan?. 22.5mm, 2.71 grams. Hartill 15.114.

These very crude lead Kai Yuan cash were made during the The Kingdoms period of division in China. They are generally found in southern China, in the area which belonged to the Southern Han and Chu Kingdoms. More precise attribution of these coins is impossible at this point.