China, 73-49 BC., Western Han dynasty, Emperor Xuandi, Wu Zhu, Hartill 8.11.

China, Western Han dynasty (206 BC. - 8 AD.), under Emperor Xuandi, (Shang Lin San Guan - Shanglin Three Offices variety?), ca. 73-49 BC.,
Wu Zhu (5 Zhu) (24,5 mm / 2,84 g), cast, square center hole,
Obv.: 五 - 铢 , Wu - Zhu (right - left), small Wu, raised rim or bar above the hole on the obverse.
Rev.: plain (square center hole), modern scratches below.
Hartill 8.11 (rarity 13, very common) ; Schjöth 115 var. .

(also a "Shang Lin San Guan Wu Zhu" ?)