What this coin looks like (obverse, reverse, mint mark location, special features, etc.):
This variety of the 1880 O Morgan Silver Dollar features the normal date variety with no major special features on the date. The difference between the 1880 O normal date vs 1880/79 Morgan dollar varieties is depicted below in the example comparison image:
Coin valuation chart: Typical coin prices, values and worth per grade or condition - in USD