About: http://webisa.webdatacommons.org/156172331

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	Placed in the Journal are a dozen or so letters of introduction or orders in Arabic, Persian or English used for the trip
http://www.w3.org/ns/prov#wasQuotedFrom	si.edu