What this coin looks like (obverse, reverse, mint mark location, special features, etc.):
There were two major varieties in regards to the size of the 1840 date on the Braided Hair Large Cent. The one depicted above is the small date variety with smaller numbers and a different style. The difference between the 1840 Small Date vs Large Date Braided Hair Large Cent (Penny) is depicted below in the example comparison image of the coins:
Coin valuation chart: Typical coin prices, values and worth per grade or condition - in USD