A Bohemian engraved armorial goblet and cover, circa 1720 circa 1720

the funnel bowl decorated with a bishop holding the scales of Justice and a centurion within a strapwork cartouche, inscribed abobe UNUM NIHIL, DUOS PLURIMUM POSSE, the reverse with coat-of-arms, the facetted knopped stem inset with spiralling ruby threads, matched domed cover, stem restuck