In The UK There Is A Saying,

'if you look after the pennies the pounds will look after themselves',

I guess the same in the USA except for pounds being dollars, well here is one penny that certainly makes the saying true, if you find one of these in your lose change the dollars will look after themselves all $2.3 million of them!

the coin was one of the first issued by the U.S. Mint in 1793, the penny was called a "Chain Cent" originally because the tail's side design prominently shows a chain with 13 rings, symbolising the original 13 colonies, the auction took place last Wednesday, the coin going to anonymous bidder, the auction was held in Orlando during a convention of coin enthusiasts, 

also of note was a second coin that also sold for more than $2 million at the auction, a $20 denomination gold coin from 1907 sold for $2.1 million, note to self, when in America check lose change daily!