Obverse: The obverse features the crowned royal coat of arms of Spain, representing the authority of the Spanish monarchy. The surrounding legend reads “CAROLUS III D G HISPAN ET IND REX”, meaning “Charles III, by the Grace of God, King of Spain and the Indies”. The denomination of 8 reales and the assayers' initials appear beside the shield.
Reverse: The reverse depicts two crowned globes representing the Old and New Worlds, flanked by the Pillars of Hercules. The pillars are wrapped with ribbons bearing the Latin motto “PLUS ULTRA” (“Further Beyond”). Above the globes appears “VTRAQUE VNUM” (“Both Are One”), while the date “1770” and the Mexico City mintmarks appear below.
About the coin: The 1770 silver 8 Reales was struck in New Spain, present-day Mexico, during the reign of King Charles III of Spain (1759–1788). This historic coin type is widely known as the Spanish dollar or Pillar Dollar.
During the 18th century, Spanish 8 Reales coins circulated extensively in international trade across Europe, the Americas and Asia. Their established silver content and widespread acceptance made them one of the most influential trade coins of the period. They also played an important role in the development of the United States dollar.
The coin was struck at the Mexico City Mint, one of the oldest mints in the Americas. It weighs approximately 27.07 g, contains .917 fine silver and measures approximately 39 mm in diameter.
This example has been certified by NGC (Numismatic Guaranty Company), an independent numismatic grading service. It is housed in a protective NGC holder, with its individual grade and certification details recorded on the holder's label.
