About: http://webisa.webdatacommons.org/233796827

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http://www.w3.org/ns/prov#value	The Top 25 and Top 100 series are the most useful ones (the old 1:50 000 series is no longer being updated, as far as I can tell).
http://www.w3.org/ns/prov#wasQuotedFrom	dcrainmaker.com