Assertion: biscuit porcelain | /r/ObjectUse | used at vincennes
Facets:
value: in 1751
type: TEMPORAL
value: by the director
type: OTHER
Source sentences:
text: Biscuit porcelain was first used at Vincennes in 1751 by the director Jean-Jacques Bachelier; this simply involved not glazing or painting the piece after a single firing, leaving a matt surface resembling marble.