About: http://webisa.webdatacommons.org/361379930

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	This signal reproduced an accurate still image of the target, so the monoscope was used to produce still images such as test patterns and station logo cards.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org