What this coin looks like (obverse, reverse, mint mark location, special features, etc.): 1849/6 (Widely Placed 6) is one of the major overdate varieties of the 1849 Seated Liberty Half Dime. Please note that there is active debate and confusion among experts in the numismatic field on whether this is actually an 1849/8 overdate or 1849/6 overdate error because determining the underlying digit is extremely difficult. In more recent times the consensus has been leaning towards 1849/6 (9 Over 6). This particular variety has a very widely placed "6" (or "8"). Source of example image is courtesy of NGC Coins.
Coin value chart: Typical coin prices, values and worth in USD based on grade/condition