About: http://webisa.webdatacommons.org/8517858

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	They made storage tanks for the oil industry, and it went back to the turn of the century when northwest Pennsylvania was an oil center.
http://www.w3.org/ns/prov#wasQuotedFrom	si.edu