About: http://webisa.webdatacommons.org/258289685

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 a little hard to tell from these pictures, but there is a brown border running down the leading edge.I, too, was thinking gold leaf iron rods (his may be brass, but I do not think so) mounted to the ceiling.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com