About: http://webisa.webdatacommons.org/269114738

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	Only 9 coins are needed to complete this set, but it still is a tough task when attempting to obtain finest known examples.
http://www.w3.org/ns/prov#wasQuotedFrom	pcgs.com