Assertion: fencer's mask | /r/HasProperty | designed in 18th century
Facets:
value: by the celebrated duelist
type: OTHER
value: by the fencing master la boëssière
type: OTHER
Source sentences:
text: To further enhance safety, a mask was designed in the 18th century by the fencing master La Boëssière and the celebrated duelist Joseph Bologne, chevalier de Saint-Georges.