About: http://webisa.webdatacommons.org/228853769

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	to 1995 and are made up of a variety of items from personal correspondence such as cards and letters, newspapers, newsletters
http://www.w3.org/ns/prov#wasQuotedFrom	cdlib.org