About: http://webisa.webdatacommons.org/180804491

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 cards were mostly from between 1959-1973, but a good 80 percent of them from the '60s.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com