What this coin looks like (obverse, reverse, mint mark location, special features, etc.):
One major variety of the 1979 P Susan B. Anthony (SBA) Dollar features a narrow rim on the obverse of the coin. The 11-sided rim is slightly narrower which results in more spacing between the 1979 date and the rim. This is sometimes known as the "far date" variety as the date is farther away from the rim. The difference between the 1979 narrow rim vs wide rim (far date vs near date) Susan B Anthony 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