Struck in 1799 during the later years of the reign of George III, this gold guinea represents the rarest date of the “spade” reverse type, making it a highly prized coin for specialists in late eighteenth‑century British gold. Graded AU58, it sits just below full mint state, retaining much of its original mint bloom and sharpness of detail while showing only the lightest traces of circulation.

The obverse bears the fifth head portrait of George III, a mature and dignified likeness that reflects the king’s long rule through war and political change. His laurel‑crowned bust is crisply engraved, with hair and facial features showing excellent definition consistent with the high grade. Around the portrait runs the Latin legend proclaiming his titles as king of Great Britain, France and Ireland, with clear lettering and minimal weakness.

On the reverse, the distinctive “spade”‑shaped shield of arms stands at the centre, surmounted by a crown and enclosing the quartered royal arms. This design, introduced in the 1780s, takes its nickname from the pointed base of the shield, reminiscent of a garden spade. The 1799 issue is the scarcest date within this popular type, and examples in such a high state of preservation are particularly sought after. The intricate detail of the crown, the escutcheons and the surrounding legend remains sharply defined, with only slight friction to the highest points.

For the collector of Georgian gold, this 1799 George III guinea offers an appealing blend of rarity, condition and historical interest. It evokes a period marked by the challenges of the French Revolutionary Wars and the evolution of Britain’s coinage just before the great recoinage of the early nineteenth century. With its attractive surfaces, well‑struck portrait and classic spade reverse, this AU58 example would form a distinguished highlight in any cabinet of British gold coins.