An incredibly rare 19th century postage stamp, a tiny one-cent magenta from British colonial Guyana, sold for a world record $9.5 million at a New York auction.
The world's most famous postage stamp, a tiny piece of British colonial memorabilia from 19th century South America, is going under the hammer in New York for $10 to $20 million.
The loss-making US Postal Service (USPS) introduced Harry Potter stamps Tuesday, delighting fans of the fictional boy wizard but angering some philatelists who complain he's not American.
