About: http://webisa.webdatacommons.org/25250334

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	PCGS lists the current pricing for coins they have graded, which means they may be on the higher side, but the list is a good starting point for figuring out how much to bid.
http://www.w3.org/ns/prov#wasQuotedFrom	genuinecoinsforsale.com