About: http://webisa.webdatacommons.org/193616724

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	The slides are a mix of charts, diagrams, and photographs, steel samples and production methods, including a very nice group of hand-colored slides of steel workers in the mill....
http://www.w3.org/ns/prov#wasQuotedFrom	cowanauctions.com