dated 1783

with polished tapering blade of flattened rounded section, gilt-brass hilt including bow-tie quillons engraved with shamrocks, the badge of the Order of St Patrick, the date and the Royal monogram on a flag, langets formed as an elaborate trophy-of-arms cast in low relief, rectangular grip engraved with scrolling shamrock foliage, and the pommel formed as a stylised acorn, in its original leather scabbard with engraved gilt-brass mounts, including middle-band decorated with the Irish harp beneath a coronet and the locket engraved with the maker's signature

The most illustrious Order of St Patrick was founded on 5th February 1783 by George III.  Membership was limited to the King and Queen, the Lord Lieutenant (Viceroy) of Ireland and twenty-two knights.  The order is now extinct, the last two knights being the Duke of Windsor and the Duke of Gloucester.  Thomas Brady, the cutler of a number of these swords, died in 1783.