About: http://webisa.webdatacommons.org/205357528

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 tests that we have done over the past five years -- on the materials and other aspects -- do not show any
http://www.w3.org/ns/prov#wasQuotedFrom	maphistory.info