China, 1368-1398 AD., Ming dynasty, emperor Tai Zu, 1 Cash, Hartill 20.57.

China, Ming dynasty (1368-1644 AD.), emperor: Tai Zu (T'ai Tsu) (reign 1368-1398 AD.), reign title: Hong Wu (1368-1398 AD.), issued 1368-1398 AD.,
1 Cash (22,5 mm / 3,61 g), cast, square center hole,
Obv.: 洪 武 通 宝 , Hong Wu Tong Bao, top-down-right-left of center hole; one dot Tong, regular Wu.
Rev.: plain (square center hole).
Schjöth 1137 ; Hartill 20.57 (rarity 14, very common) ; FD 1895 .