
Based on the provided information, the 1893-S silver dollar is the most valuable. One source explicitly states that in 2021, an 1893 Morgan silver dollar struck at the San Francisco mint (indicated by the "S") sold for over $2 million, establishing it as the highest-selling Morgan silver dollar ever recorded.
The value of any specific coin can vary significantly based on its condition. For the 1893-S, one source estimates its value ranges from $3,000 to $1,250,000, while another lists it between $135,000 and $660,000.
Several other Morgan dollars are also noted for their high value. The 1884-S and the 1889-CC are also listed with potential values exceeding one million dollars. Other key dates mentioned for their significant worth include the 1895, 1895-O, 1893-CC, and 1901 issues. The rarity and condition of the coin are the primary factors determining its ultimate market value.


