1911 Encyclopædia Britannica/Pyx

PYX (Gr. πνξίς a box or chest), a term for various forms of receptacle. In ecclesiastical usage it is the sacred vase or tabernacle in which the Host is reserved. In the English Mint the pyx is the chest in which are placed one coin from even 15 lb of newly coined gold and one from every 60 lb of newly coined silver to await the "trial of the pyx" (see MlNT). This chest was formerly kept in the Chapel of the Рyx in Westminster Abbey.