About: http://webisa.webdatacommons.org/31275169

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	addition to notebook, there are loose papers including blueprints of machinery, correspondence
http://www.w3.org/ns/prov#wasQuotedFrom	harvard.edu