About: http://webisa.webdatacommons.org/20748423

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Base metals, such as copper were blended in with the silver and so even though the coin itself weighed the same, the amount of silver in it became less and less with each successive emperor.
http://www.w3.org/ns/prov#wasQuotedFrom	buygold.com