About: http://webisa.webdatacommons.org/228057418

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	In the drawing figures appended hereto, one of the pit sheaves 30 is filly visible and the other is nearly filly obscured by foreground rail 14.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com