About: http://webisa.webdatacommons.org/3683424

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	A Klein bottle is a surface which hasVariation on the Klein bottle, 1995. `Baby Calculator' stylus adding device by Glenview, Illinois, USA, c. 1960.
http://www.w3.org/ns/prov#wasQuotedFrom	sciencemuseum.org.uk