About: http://webisa.webdatacommons.org/117562877

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	While true marbel has long been used for clock cases, the so-called 'marble' clock has a case made mainly from slate with a high surface polish.
http://www.w3.org/ns/prov#wasQuotedFrom	national-clockshop-directory.com