According to Pearlman, most people begin their collecting journey with everyday coins found in circulation. But knowing what ...

Devices that collect coins for payment typically use standardized coin acceptors like the one shown here. These devices use a protocol called ccTalk to let the system know what coins were inserted.

Coin collectors draw big headlines when they sell their rare coins for thousands or even millions of dollars, but the vast majority of collectors will never see such a payoff. The most valuable coins ...

In a digital world filled with credit cards, electronic payments and direct deposits, you can go for days without handling actual money. But for collectors and hobbyists all over the world, there’s no ...