About: http://webisa.webdatacommons.org/126728637

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	Completing this cover is a hand cancel for April 14, 1970, Houston, Texas, after NASA's decision to abort the flight of Apollo 13, NASA's third manned spaceflight to land on the Moon.
http://www.w3.org/ns/prov#wasQuotedFrom	collectspace.com