About: http://webisa.webdatacommons.org/2219428

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	Forwarding Addresses from the Past (a closer look at letters, postcards, and other documents that provide addresses)
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com