Coin collectors have been spending hundreds, thousands and most recently, more than $1 million on a penny that was mistakenly stamped twice. Here's why the coins are valuable.

Collectors hunting for valuable coins don't have to reach back a century or more to find them -- they can pop back a few ...

The coins with mistakes stamped on them that could be worth up to $25,000 each. ... A doubled die coin features a misalignment that occurred during the hubbing process.

The other variety of this rare penny stamped the letters closer together, nearly touching. The close "AM" version is the more valuable penny of the two. 12. 1984 Lincoln Memorial Cent (Doubled Die ...

Coin collectors spend a tremendous amount of time and money searching for that one coin to add to ... 2.1995 double die penny: ... This is not the first time a penny has been double stamped or died.

Sotheby's describes the 1933 Double Eagle as the ‘world's most famous and storied coin’. It set a world record when it last sold in 2002.The British Guiana One-Cent Magenta stamp, dubbed the ...

Coin collectors have been spending hundreds, thousands, and most recently, more than $1 million on a penny that was mistakenly stamped twice. Here's why the coins are valuable.

1971-S Doubled Die Obverse Penny: $10,350 Double die mistakes happen when the metal gets struck multiple times by the die (or design stamp) on either the front (obverse), reverse, or both sides.