A mid-18th century Irish two-handled silver cup and a George III associated cover

A mid-18th century Irish two-handled silver cup and a George III associated cover,

the cup possibly by William Betagh, the cover Dublin 1771,

circular form, leaf capped scroll handles, central girdle, embossed foliate scroll decoration with birds, engraved with a crest, height 31.5cm, approx. weight 43oz.

The crest is that of Burgh of Dublin.