About: http://webisa.webdatacommons.org/178264151

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	This instrument is a version of a commercial model of a Wulff electroscope especially modified by its manufacturer, G??nther & Tegetmeyer (mfr. number 4760), to take into account operating under reduced pressure at high altitudes.
http://www.w3.org/ns/prov#wasQuotedFrom	si.edu