A Netherlands faon de Venise diamond-engraved royal armorial double-portrait goblet

細節
A Netherlands faon de Venise diamond-engraved royal armorial double-portrait goblet
the funnel bowl engraved in diamond-point with the crowned arms of William III, the King-Stadholder, the reverse with bust portraits of King William and Queen Mary within crowned oval cartouches flanking the cipher RWMR5 within surrounds of berried foliage, the stem with a hollow inverted baluster knop engraved with a foliate band set between two mereses, the folded conical foot with a band of berried foliage, circa 1690 (bowl extensively repaired) -- 20.5cm. high
See colour plate 6