Zhiqian
Standard cash (traditional Chinese: 制錢; simplified Chinese: 制钱; pinyin: zhì qián; Manchu: ᡳᠵᡳᡴᠠ; Möllendorff: Durun i jiha), or regulation cash coins, is a term used during the Ming and Qing dynasties of China to refer to standard issue copper-alloy cash coins produced in imperial Chinese mints according to weight and composition standards that were fixed by the imperial government. The term was first used for Hongwu Tongbao cash coins following the abolition of large denomination versions of this cash coin series.