About: http://webisa.webdatacommons.org/337783263

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	Referring to the drawings, a flat base 10 of wood or other suitable material has disposed on the upper surface thereof two elongated bearing blocks 12 and 14 also preferably made of wood.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com