A sterling silver George III rococo two-handled cup and cover, 1758 London, with maker's mark for Lewis Herne and Francis Butty, richly embellished throughout with scrolling and floral motifs, with ornate triple scroll handles, a beaded pedestal base and a conforming domed cover with a pear-shaped finial, with the mermaid crest for the O'Byrne family; hallmarked underside and to cover, silver weight 1842gr height 34 cm, width 29 cm