About: http://webisa.webdatacommons.org/302616628

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 Worshipful Company of Goldsmiths, London, and other guilds are empowered to test and stamp gold and silver wares with four or more marks, including a quality mark, a town mark, a date letter (changed each year) and a maker's mark.
http://www.w3.org/ns/prov#wasQuotedFrom	goldprice.org