Assertion: artillery's gun | /r/HasProperty | manufactured with mechanical wedge breech block
Facets:
value: during the 1660’s in russia
type: TEMPORAL
Source sentences:
text: During the 1660’s in Russia rifled guns were manufactured with a “grape cluster” (a metallic threaded cylinder) which was screwed into the bore, as well as smooth-bore guns with a mechanical wedge breech block.