About: http://webisa.webdatacommons.org/143213327

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	Invented to reduce the cost of printing large issues of low-value stamps to top-up old issues,[citation needed] NVI stamps are used worldwide, including in the United States and some European countries.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org