About: http://webisa.webdatacommons.org/453310607

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	The higher the grade of the coin, the higher the value.Here is a video demonstrating the meticulous coin grading procedure of the Professional Coin Grading Service (PCGS).
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com