<http://webisa.webdatacommons.org/137895739>	<http://www.w3.org/ns/prov#value>	"The metal of the barrel is an alloy composed principally of aluminum and steel which they have learned to temper to a hardness far exceeding that of the steel with which we are familiar." .
<http://webisa.webdatacommons.org/137895739>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/362034504>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/137895739> .
<http://webisa.webdatacommons.org/prov/364473118>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/137895739> .
<http://webisa.webdatacommons.org/137895739>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<thefreelibrary.com> .