based on the net... copied>
Most 1979 Susan B. Anthony dollars you find with any wear at all are worth only face value — just one dollar. Even those that look nearly perfect to the unaided eye (no coin magnifying glass needed) are still worth between only $1 to $2. In other words, most 1979 Susan B. Anthony dollars are safe to spend.
Your SBA dollar has average circulation. Lots of minor marks and scratches. What I typically do is put together complete sets of year and mint mark and sell locally for 2x face, plus cost of folder if one is wanted. A complete set, including types, a bit more.