The Mystery of the Coin That Shouldn’t Exist
A decade ago, a funny money mystery fell into the hands of scientists and students at the Pontifical Catholic University of Peru in Lima.The university had been acquiring 19th- and 20th-century Peruvian coins from local dealers, and graduate students in the chemistry department were analyzing the pieces for their thesis work. But one coin, a 10-cent piece known as a dinero, stood out.The dinero was marked “1899.” The problem was that official records indicated no coins of that denomination were minted in Peru that year — according to the people who made the money, the coin never existed.Most international coin catalogs don’t list 1899 dineros, said Luis Ortega, a chemist at the university. And in the rare cases that they do, there is often only a note of “counterfeit” with no further detai...