About: http://webisa.webdatacommons.org/455384994

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	Quadruple Plate was common during the late 1800???s and early 1900???s and was a testament to the amount of silver used.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com