About: http://webisa.webdatacommons.org/151985893

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	A cartwheel sight was suspended behind a muslin screen and behind this sight was a model plane.
http://www.w3.org/ns/prov#wasQuotedFrom	ibiblio.org