His presidency has yielded more — and more elaborate — coins that are shinier, flashier and even bigger, setting off a boom for coin manufacturers, counterfeiters and collectors, with one official ...

WASHINGTON — Since Bill Clinton occupied the White House, the commemorative medallions known as challenge coins have been stately symbols of the presidency coveted by the military, law enforcement ...

WASHINGTON — Since Bill Clinton occupied the White House, the commemorative medallions known as challenge coins have been stately symbols of the presidency coveted by the military, law enforcement ...

WASHINGTON — Since Bill Clinton occupied the White House, commemorative medallions known as challenge coins have been stately symbols of the presidency coveted by the military, law-enforcement ...