Assertion: bottle's type | /r/HasProperty | formed
Facets:
Source sentences:
text: This type of pontil mark - which was also called the "ring pontil" - was formed when a hollow blowpipe was used as the pontil rod, is at least as common on American made bottles as the glass tipped pontil mark (Boow 1991).
text: Pontil: This type of pontil mark - which was also called the "ring pontil" - was formed when a hollow blowpipe was used as the pontil rod, is at least as common on American made bottles as the glass tipped pontil mark (Boow 1991).