About: http://webisa.webdatacommons.org/403768088

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	For example, since the mid-1800's, it became known and desirable to protect the authenticity of such items of value as postage stamps and currency from copying/counterfeiting by watermarking the item of value.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es