1921 Morgan dollars regardless of mintmarks are the most common date of all Morgans. A circulated coin has a retai value of $32.00-$40.00.
That is the Mintmark.It is the S Mintmark.
Circulated coins are valued at $14.00-$19.00
This coin appraises for between 90.00 and 150.00, depending on condition.
The last Morgan dollars were minted in 1921. If your dollar has an eagle with folded wings on the back it's a Peace dollar.
1883-S $30 to $250,000, 1880-O $27 to $70,000, 1921-O does not exist.
Peace dollars were made from 1921 to 1935. An 1879 silver dollar is called a Morgan dollar after its designer George T. Morgan. There's more information at the Related Question
You can't. The Carson City mint only operated from 1870 to 1893. 1921 silver dollars were minted at Philadelphia (no mint mark), Denver (D) and San Francisco (S).
If there is no mintmark it was made a Philadelphia. D means Denver and S means San Francisco.
In 1921 two different dollars were made both dated 1921. The most common is a Morgan dollar, some do have D or S mintmarks on the back of the coin just above the word DOLLAR. The other coin is a PEACE dollar that has this word on the back of the coin and will NOT have any mintmarks.
The last Morgan was struck in 1921. This coin is an EISENHOWER dollar, unless it has a "S" mintmark it's just a big dollar coin. Just spend it.
The last Morgan dollars were dated 1921. Your coin would be a PEACE dollar. Please see the Related Question for details.
What is the value of a 1928-S peace silver dollar?