About: http://webisa.webdatacommons.org/418397484

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	Up to that time there was a sliding scale; and the present system, therefore, as he conceived, had been in operation only fifteen months.
http://www.w3.org/ns/prov#wasQuotedFrom	millbanksystems.com