About: http://webisa.webdatacommons.org/170812611

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	This piece is a portrait mounted on board, signed and titled on reverse.
http://www.w3.org/ns/prov#wasQuotedFrom	invaluable.com