About: http://webisa.webdatacommons.org/208204809

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	Additional information is included, including correspondence between the previous owner and both the Spalding Gentlemen's Society and the National Portrait Gallery.
http://www.w3.org/ns/prov#wasQuotedFrom	invaluable.com