Zhang said the mint was a national-level one. Xi’an used to be the capital of the Western Han Dynasty when the city was called Chang’an.
In December 2015, archaeologists from the CASS Institute of Archaeology and Xi’an’s institute of cultural relics protection and archaeology jointly launched the excavation work of the site.
The latest round of excavation started in March 2021.
The discoveries are of great significance to the study of coinage technology and the changes in monetary and economic policies of that time, said Zhang.