The reverse displays the arms of Castile and Leon within a quatrefoil design. These arms, dividing the shield into quadrants, are emphasized so they resemble a cross in the center, with castle and lion symbols in each respective corner. A Jerusalem cross with a ball at each end denotes the Mexico mint.
Charles II, also known as “El Hechizado” (“The Bewitched”), was king of Spain from 1665 to 1700 and the last monarch of the Spanish Habsburg dynasty. Childless, his will named Philip of Anjou as his successor, plunging the Spanish Empire into turmoil and triggering the War of Spanish Succession.
The real was a standard unit of currency in Spain and its colonies for centuries. When silver deposits were discovered in the Americas, there was an urgent need to ship it to Spain. Starting in the reign of Philip II, mints produced irregular silver coinage known as cobs—bars of silver cut into chunks of correct weight. These pieces, although crude in shape, were practical for transport and later melted down in Spain to create jewelry, coins, and silver bars. Each coin has a unique shape, making it a one-of-a-kind historical artifact.