About: http://webisa.webdatacommons.org/39157840

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	But of interest to me is what some of these stamps would have been worth if they would not been used to mail us this invite.
http://www.w3.org/ns/prov#wasQuotedFrom	straightdope.com