What this coin looks like (obverse, reverse, mint mark location, special features, etc.):
A major error of the 1801 Draped Bust Large Cent (Penny) includes an incorrect fractional on the reverse of the coin. Typically this fraction would be 1/100 to denote 1 cent. The creator of the coin die mistakenly designed 1/000 (by the way: 1 divided by 0 = infinity!). Some coins ended up like this without being corrected. This error is depicted above in the example image of the coin.
Coin valuation chart: Typical coin prices, values and worth per grade or condition - in USD