These large notes measured about 7.42 by 3.1 inches. While 10-dollar bills aren't exactly rare, they have one of the lowest printings of any denomination. The Federal Reserve reports that there ...

Minted in 1794 and 1795, this rare coin is one of the most expensive coins in the world. It was originally based on the Spanish Dollar, as evidenced by its size and weight. Currently, there are ...

1853-O Seated Liberty Half Dollar This is another rare coin, and USA Coin Book said the rarest is the Type 1 1853-O seated liberty half dollar (without arrowheads at the date and no rays on the ...