The U.S. Mint has inadvertently struck a collector’s item: 1989 quarters with no mint mark. Such oddities are often sold for thousands of times their face value; some numismatic dealers estimate ...

The U.S. Mint introduced this commemorative quarter that was designed to mark the bicentennial of George ... Mint engraver Charles Barber modified the name to just the initials (VDB), but ...

Errors – such as double stamping or missing mint marks – or limited releases ... Other special commemorative quarters to watch out for include ones issued in 1999 – the first year of ...