About: http://webisa.webdatacommons.org/13134806

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	Approximately 75 contracts, royalty statements and other records are chronologically arranged from 1913 to 1954.
http://www.w3.org/ns/prov#wasQuotedFrom	nebraskahistory.org