Assertion: bottle's product | /r/HasProperty | regular round/oval post plate
Facets:
Source sentences:
text: There is the possibility that some post-bottom molded bottles with an apparent mold seam on the upper heel are in fact a product of a hybrid mold type that had two moveable parts to the base plate: the regular round/oval post plate in the middle of the base and another circular plate surrounding that central post plate that meshed with the side halves of the mold and did leave a true cup-bottom mold type mold seam at the heel.