ised . ▁ ▁Western ▁Han ▁dynast y ▁▁ ▁Under ▁the ▁Western ▁Han ▁dynast y ▁the ▁Ban ▁Li ang ▁c ash ▁co ins ▁of ▁the ▁earlier ▁Q in ▁dynast y ▁were ▁retained ▁until ▁a ▁series ▁of ▁mon et ary ▁re forms ▁replaced ▁them ▁first ▁with ▁the ▁San ▁Z hu ▁and ▁then ▁the ▁Wu ▁Z hu , ▁the ▁latter ▁would ▁be ▁continued ▁to ▁be ▁manufact ured ▁for ▁around ▁ 7 0 0 ▁years . ▁ ▁X in ▁dynast y ▁▁▁▁ ▁After ▁Wang ▁Mang ▁us ur ped ▁the ▁throne ▁he ▁instit uted ▁various ▁mon et ary ▁re forms , ▁in ▁AD ▁ 9 ▁he ▁retained ▁the ▁Wu ▁Z hu ▁c ash ▁co ins ▁but ▁introduced ▁two ▁new ▁types ▁of ▁Kn ife ▁money , ▁between ▁AD ▁ 9 ▁and ▁ 1 0 ▁he ▁introduced ▁an ▁impos s ibly ▁complex ▁system ▁involving ▁tort o ise ▁shell , ▁cow ries , ▁gold , ▁silver , ▁six ▁round ▁co pper ▁co ins , ▁and ▁a ▁re int roduction ▁of ▁the ▁sp ade ▁money ▁in ▁ten ▁denomin ations . ▁In ▁AD ▁ 1 4 , ▁all ▁these ▁tokens ▁were ▁abol ished , ▁and ▁replaced ▁by ▁another ▁type ▁of ▁sp ade ▁coin ▁and ▁new ▁round ▁co ins . ▁ ▁List ▁of ▁c ash ▁co ins ▁issued ▁by ▁the ▁X in ▁dynast y : ▁ ▁Ch eng j ia ▁▁ ▁The ▁re bel ▁G ong sun ▁Sh u ▁cast ▁iron ▁c ash ▁co ins ▁based ▁on ▁the ▁Wu ▁Z hu ' s ▁of ▁the ▁Western ▁Han ▁dynast y ▁in ▁his ▁re bel ▁state