▁Eastern ▁X ia ▁dynast y ▁▁ ▁During ▁a ▁coin ▁ho ard ▁in ▁the ▁Russian ▁Far ▁East ▁in ▁ 2 0 1 1 ▁seven ▁c ash ▁co ins ▁were ▁discovered ▁that ▁bore ▁an ▁ins cription ▁which ▁was ▁previously ▁unknown , ▁these ▁co ins ▁bore ▁a ▁title ▁all ud ing ▁to ▁a ▁re bel ▁state ▁that ▁was ▁founded ▁during ▁the ▁Mong ol ▁con quest ▁of ▁the ▁Jin ▁dynast y . ▁ ▁List ▁of ▁c ash ▁co ins ▁issued ▁by ▁the ▁J urch en ▁Eastern ▁X ia ▁dynast y : ▁ ▁Mong ol ▁Empire ▁( p rior ▁to ▁the ▁establishment ▁of ▁the ▁Y uan ▁dynast y ) ▁▁ ▁C ash ▁co ins ▁issued ▁by ▁the ▁Mong ols ▁before ▁ 1 2 3 0 : ▁ ▁C ash ▁co ins ▁issued ▁by ▁the ▁Mong ol ▁Empire ▁while ▁it ▁occupied ▁Jin ▁dynast y ▁territory ▁( cir ca ▁ 1 2 3 0 – 1 2 8 0 ): ▁ ▁Y uan ▁dynast y ▁▁ ▁Under ▁Mong ol ▁rule ▁paper ▁money ▁such ▁as ▁the ▁J ia och ao ▁completely ▁replaced ▁co pper ▁coin age , ▁during ▁times ▁of ▁infl ation ▁Temple ▁co ins ▁issued ▁by ▁Buddh ist ▁tem ples ▁became ▁the ▁de ▁fact o ▁currency . ▁Under ▁K ül üg ▁Khan ▁a ▁large ▁number ▁of ▁c ash ▁co ins ▁were ▁issued ▁to ▁pay ▁for ▁the ▁state ' s ▁exp end it ures ▁but ▁these ▁got ▁ph ased ▁out ▁in ▁favour ▁of ▁paper ▁currency , ▁it ▁wasn ' t ▁until ▁the ▁reign ▁of ▁T og hon ▁Tem ür ▁that ▁the