▁last ed ▁until ▁ 1 6 8 2 . ▁ ▁Reb els ▁ ▁Later ▁Jin ▁dynast y ▁( 1 6 1 6 – 1 6 3 6 ) ▁▁▁ ▁The ▁following ▁co ins ▁were ▁issued ▁by ▁the ▁J urch ens ▁( l ater ▁Man chus ) ▁before ▁the ▁establishment ▁of ▁the ▁Q ing ▁dynast y , ▁these ▁co ins ▁were ▁cast ▁when ▁the ▁J urch en ▁state ▁was ▁known ▁as ▁the ▁Later ▁Jin ▁dynast y : ▁ ▁A ▁c ash ▁coin ▁with ▁the ▁ins cription ▁" T ian cong ▁T ong ba o " ▁( 天 <0xE8> <0x81> <0xB0> 通 <0xE5> <0xAF> <0xB3> ) ▁reported ▁to ▁be ▁in ▁the ▁denomin ations ▁of ▁ 1 ▁w én ▁and ▁ 1 0 ▁w én ▁has ▁also ▁been ▁attributed ▁to ▁Hong ▁Ta iji , ▁however ▁the ▁authentic ity ▁of ▁this ▁coin ▁is ▁doubt ful . ▁ ▁Q ing ▁dynast y ▁▁ ▁Q ing ▁dynast y ▁era ▁c ash ▁co ins ▁generally ▁bear ▁the ▁reign ▁title ▁of ▁the ▁Emperor ▁in ▁Chinese ▁characters , ▁with ▁only ▁a ▁single ▁change ▁of ▁reign ▁title ▁occurr ing ▁with ▁the ▁Q ix i ang ▁Emperor ▁becoming ▁the ▁T ong z hi ▁Emperor ▁by ▁decision ▁of ▁his ▁mother , ▁Em press ▁Dow ager ▁C ix i . ▁ ▁X in ji ang ▁issues ▁▁ ▁C ertain ▁parts ▁of ▁X in ji ang ▁under ▁Q ing ▁rule ▁had ▁a ▁mon et ary ▁system ▁separate ▁from ▁that ▁was ▁separate ▁from ▁that ▁of ▁China ▁proper , ▁this ▁was ▁largely ▁due ▁to ▁the ▁fact ▁that ▁the ▁area