Size 37.7 mm, weight 17.61 g|
Obverse - Mu Guo Yuan Pao
Reverse - plane
This large muguo coin is not-published anywhere. Information about the 1 cash size coin of the Liao dynasty you can find there - http://www.charm.ru/library/zhuangguo.htm
Any additional comments on that item would be appreciated.
You can sent it to Vladimir Belyaev.