“乾元重宝”系唐代肃宗乾元元年(公元前758年)始铸。早期的“乾元重宝”比“开元通宝”大几倍,形制规整、厚重,标准“乾元重宝”当十钱重约8克,重轮当五十大钱重约20克,而且要当十个或五十个“开元通宝”用,因此,货币一发行就遭到老百姓的反对。后来,朝廷遂减重贬值,“乾元重宝”只顶三个“开元通宝”用,至宝应元年后遂行乾元小钱。“乾元重宝”的文化底蕴很丰厚,早期品字文精美, “Qianyuan heavy treasure ” is the beginning of the Tang Dynasty Sucev dry yuan (758 BC) began casting. Early “Qianyuan treasures ” than “Kaiyuan Tongbao ” several times, the shape of the system, heavy, standard “Qianyuanjinbao ” When the ten money weighs about 8 grams, reincarnation Fifty money weighs about 20 G, but also to be used as ten or fifty “Kaiyuan Tongbao”, so the issue of currency was opposed by the common people. Later, the court then devalued devaluation, “dry Yuan heavy treasure ” only the top three “Kaiyuan Tongbao ” with, treasure should be dry after the first year of small yuan. “Qianyuan treasures”, "the rich cultural heritage, early product words beautiful,