What this coin looks like (obverse, reverse, mint mark location, special features, etc.):
One major variety of the 1798 Draped Bust Large Cent (Penny) features a different style of hair used on the lady liberty portrait. This type is known as "Style 1". This style is best identified by noticing the absence of one curl of hair above the shoulder (which was added in style 2). The difference between the Style 1 vs Style 2 hair is depicted below in the example comparison image of the coin varieties:
Coin valuation chart: Typical coin prices, values and worth per grade or condition - in USD