Folks in Canada, you might want to check those boxes in the attic extra carefully, before donating your grandpa's old junk. This 1904 British stamp is extremely rare because nearly all of the 19 ...

The "Inverted Jenny," 1918, one of the rarest and most valuable stamps in the world ... made it home later that night, the 29-year-old stamp collector and stockbroker’s clerk told his wife ...

Collecting stamps can be as easy as pulling a stamp off an envelope delivered by mail or as complicated as studying historical events to find a particularly rare or coveted one.