About: http://webisa.webdatacommons.org/411827768

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 letter contained instructions for the use of the cyphers, radio frequencies and other information.
http://www.w3.org/ns/prov#wasQuotedFrom	radio-weblogs.com