1785-M Spain Gold Escudo NGC AU58 Charles III only

Description

6 in this grade (AU58) at NGC, including this coin
Only 4 graded higher (MS61 and MS62).
Only 31 total including this coin graded at NGC
PCGS has graded only 6 of this date and issue, with none graded higher than AU55
Legal tender in the United States until 1857 and then for years after that still at US post offices, albeit at a discounted rate of 10/12.5