About: http://webisa.webdatacommons.org/255324904

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	Lenses were still mostly from Europe or England, since the very low cost and extremely high quality of lenses from the Old World made it difficult for local artisans to compete ??? [...]
http://www.w3.org/ns/prov#wasQuotedFrom	vintageopticalshop.com