About: http://webisa.webdatacommons.org/85472262

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	They are arranged by company which provided the railway line, not the diagram - most of the diagrams are in fact from the British Railways era.
http://www.w3.org/ns/prov#wasQuotedFrom	lymmobservatory.net