About: http://webisa.webdatacommons.org/130663417

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	FIG. 2 is a fragmentary, perspective view thru the upper part of said mask 20 minus the lens securing means.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com