About: http://webisa.webdatacommons.org/420115098

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	Unlike collectibles such as coins and stamps, there are no ???official records??? of all the postcards ever produced, nor is there a clear standard of value.
http://www.w3.org/ns/prov#wasQuotedFrom	worthpoint.com