Assertion: blown bottle | /r/HasProperty | produced without the aid of a containment mold
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Source sentences:
text: Free-blown bottles were produced without the aid of a containment mold being instead formed and shaped by the skills of the glassblower using manipulation of the blowpipe (the use of which dates back to the 3rd century B. C.), various simple hand tools, and usually a hollowed out block and a flat table called a marver (Hunter 1950).