A $10,000 bill from 1934 sold for a record $480,000 at an auction in Texas auction — while a $20 coin minted in 1899 also set a record ... only the $100,000 gold certificate issued in 1934 ...

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 ...