What does a Spanish dollar look like?

* Design: A bust of the current or previous Spanish monarch, facing right.

* Lettering: The monarch's name and titles, the year of issue, the denomination, and the mintmark.

Reverse

* Design: A cross with the letters "I" and "R" (for "Iesus Rex", meaning "Jesus the King") in the center, surrounded by a wreath of laurel leaves.

* Lettering: The legend "Hispaniarum et Indiarum Rex" ("King of Spain and the Indies").

The Spanish dollar was first minted in 1497 and was used as the primary currency in the Spanish Empire for centuries. It was also widely accepted in other parts of the world, and its design was often imitated by other countries.

The Spanish dollar was replaced as the primary currency in Spain in 1868 by the peseta, but it continued to be used in the Spanish colonies until the early 20th century. Today, the Spanish dollar is still a popular collector's item.

Here are some additional details about the Spanish dollar:

* The size and weight of the Spanish dollar varied slightly over time, but it was typically about 38 millimeters in diameter and weighed about 27 grams.

* The Spanish dollar was made of silver and was typically 90% pure.

* The Spanish dollar was also known as the "piece of eight" because it was equal to eight reales, which were smaller coins.

* The Spanish dollar was used in a wide variety of transactions, from everyday purchases to large trade agreements.

* The Spanish dollar was a major factor in the development of the world economy.