What this coin looks like (obverse, reverse, mint mark location, special features, etc.):
This 1914 Indian Head Buffalo Nickel variety error has a 4 stamped over a subtle 3 in the date of this coin. One good way to tell is there will be a small "block" from the top of the 3 sticking out of upper-left side of the 4 and a small rounded edge of the 3 on the upper-right side of the 4. These features are depicted by the arrows in the example image above.
Coin valuation chart: Typical coin prices, values and worth per grade or condition - in USD