
The value of an 1878 Silver Dollar from the Philadelphia mint (indicated by the absence of a mint mark) varies significantly depending on its specific variety and physical condition. The provided context highlights a crucial factor for this particular year: the number of tail feathers on the eagle on the coin's reverse.
The initial 1878 Morgan dollars were struck with a design featuring 8 tail feathers. This was soon revised to a more anatomically correct 7 tail feathers, creating two primary varieties for collectors. There is also a less common transitional variety known as the "7 over 8 Tail Feathers." The specific variety of the coin you have is a primary determinant of its base value, with some being more sought-after than others.
In addition to the variety, the coin's grade, or state of preservation, is paramount in determining its worth. A heavily circulated coin with significant wear will be valued much lower than a pristine, uncirculated example that retains its original mint luster. To get an accurate assessment, it is necessary to first identify the tail feather variety and then have the coin's condition professionally graded. Consulting a specialized price guide, such as the Greysheet mentioned in the sources, would then provide precise, up-to-date market values for that specific variety and grade.


