About: http://webisa.webdatacommons.org/209984193

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	It wasn't; I owned one years ago, and it was mediocre in 1960 compared to other products.
http://www.w3.org/ns/prov#wasQuotedFrom	stereophile.com