Carlos and Juana Coin
1536–1572 ・ silver ・ 16th century ・ Mexico City Mint
In 1536, the first silver coins on the continent were struck. The legend, in Latin, reads "Carlos and Juana, Rulers of Spain and the Indies." The names of the two co-rulers are inscribed: King Carlos, the son, and his mother, Juana. The standard followed the Edict of Medina del Campo from the mother country, striking 67 reales from one marco of silver—approximately 230 grams. Every single coin was hand-struck with a hammer. This design continued for thirty-seven years, from 1536 to 1572.