What this coin looks like (obverse, reverse, mint mark location, special features, etc.):
One major variety of the 1803 Draped Bust Half Dollar features a large "3" in the 1803 date. The "3" is noticeably larger and wider than the small "3" variety and also includes an additional serif on the top-left tip of the "3". The difference between the 1803 Small 3 vs Large 3 is depicted below in the example comparison image:
Coin valuation chart: Typical coin prices, values and worth per grade or condition - in USD