About: http://webisa.webdatacommons.org/230049822

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 referenced hundreds if not thousands of times all over the net and all I have seen is a pic or drawing of a bolt with a bounce weight and selector lever on a trigger.
http://www.w3.org/ns/prov#wasQuotedFrom	gunco.net