The “king of hobbies” is changing. Once the domain of hobbyists trying to complete their collections, stamp collecting has shifted to investors seeking individual collectible stamps worth money. With ...

If you're late getting out those Christmas cards, you'll want to be sure they're in the mail before Jan. 8, when the first-class stamp price increases to 39 cents. The increase is the first since 2002 ...

While credit cards and inflation have rendered coins useless for day-to-day transactions, some coins have a different purpose in the modern day: They are collector's items. This is true for the 2-cent ...