LONDON (Reuters) – A rare One-Cent Magenta postage stamp printed in British Guiana in 1856 and most recently owned by the estate of a du Pont chemical company heir convicted of murder is ...

The little stamp called the One-Cent Magenta is so precious that when you account for size and weight, it’s said to be the most valuable object in the world. The One-Cent Magenta was printed in ...

Siegel Auction Galleries A 1-cent postage stamp from 1868 is up for auction and could fetch up to $5 million. A New York auction house is selling what it calls “America’s Most Valuable ...

with the rarest being one of two known one-cent “Z” Grill stamps from 1868. If sold for its estimate of $4 to $5 million, the ultra-rare collectible would become the most valuable American ...

On June 14, the one-cent Z-grill will be put up for sale by Robert A. Siegel Auction Galleries, marking the first time the rare stamp has been on auction since 1998. Experts from the New York ...

America’s most valuable postage stamp sold for nearly $4.4 million on Friday. The 1868 one-cent "Z" Grill was sold as part of the collection owned by "Bond King" Bill Gross, who co-founded asset ...