What this coin looks like (obverse, reverse, mint mark location, special features, etc.): This variety of the 1803 Draped Bust Large Cent (Penny) features a small date on the obverse and a small 1/100 fraction on the reverse of the coin.
In the large date: The tip of the "3" has an extra notch pointing upwards and the number "1" has a notch as well in the 1803 date. The numbers are also larger and the bottom portion of the number "3" sticks outwards more. The small date features a blunt "1" with no notch and smaller numbers. The difference between the large date vs small date is depicted below in the example comparison image:
The large 1/100 fraction at the bottom of the reverse also has much larger numbers and two large notches at the tips of the "1"s. The small fraction has very little or no notches on the tips of the "1"s. The difference between the small fraction vs large fraction is depicted below in the example comparison image of the coins:
Coin value chart: Typical coin prices, values and worth in USD based on grade/condition