casac nacional de moneda
In Spanish there is still a saying, valer un potos�, "to be worth a potos�" (that is, "a fortune"). For Europeans, Peru � Bolivia was part of the Viceroyalty of Per� and was known as Alto Per� before becoming independent � was a mythical land of riches. Potos� appears as an idiom for "extraordinary richness" in Miguel de Cervantes' famous novel, Don Quixote (second part, cap. LXXI). One theory holds that the mint mark of Potos� (the letters "PTSI" superimposed on one another) is the origin of the dollar sign.