The portrait style Spanish-American eight-reales was one of the most well known, and extensively circulated silver trade coins that the world has ever seen. Produced in Spain's new world colonies from 1772 to 1825, the coin made Spain a major player on the world financial stage in the eighteenth and early nineteenth centuries. This was due in large measure to the fact this coin accounted for about sixty percent of the annual silver production worldwide. The popularity and general acceptance of this particular coin - the portrait style piece-of-eight - made it the object of forgers who...