About: http://webisa.webdatacommons.org/268009225

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	It is unmarked, but t is a picture of an almost identical swan by Hallfield Pottery in a 2005 identification and value guide on page 238.
http://www.w3.org/ns/prov#wasQuotedFrom	worthpoint.com