PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • At the last 2 nationals I have made out a little cheat sheet...For example I would write down the players name then the avg for each yr and grade.ie mickey mantle 1952 b psa 1 210.00 psa 2 280 psa 3 350....keep in mind the avg VCP is is averaging the price for all cards with different problems from centering to stains to corner wear....But VCP is a great guide and tool to start negotiating with.
http://www.w3.org/ns/prov#wasQuotedFrom
  • vintagecardprices.com