Yuan Dynasty large iron cash

Vladimir Belyaev
September 02, 2000
Obverse: Mongol Pagsa Pa script Da Yuan Tong Bao (top bottom left right)

Reverse: plain

Metal: iron
Size: diameter 41.6 mm, thickness 3.6 mm
Weight: 22.5 g

Large Ta Yuan Tong Bao 10 cash coin with Mongol legend was cast in 1310 AD by Emperor Wu Zung (1307-1311).
Copper 10 cash coin is listed in the Schjoth under N1099 and in the Fisher's Ding under N1734 but reference on the iron cash is unknown for me.

Chinese Coinage Web Site