About: http://webisa.webdatacommons.org/324765266

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	Coins may have been stored with materials that have caused corrosion or have become coated with oils, glue and other liquids that collect dirt and other debris.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com