For the year 1921 two different silver dollars were issued and each is a separate series of dollar coins and the designs are very different. But because of the fact you used the motto E PLURIBUS UNUM in your question that appears on the front of the coin above Miss Liberty's head, the coin is a MORGAN dollar.
The 1921 Morgan dollar is the most common of all Morgan dollars, circulated coins run from $31.00-$40.00.
value of an 1890 E Pluribus umun silver dollar
$558.00
$100
yes
If the coin is a real Morgan or Peace dollar. The value is just for the silver, about $20.00.
value of an 1890 E Pluribus umun silver dollar
$558.00
The coin is a Sacagawea dollar not a liberty dollar and it's only worth a dollar.
$558.00
$100
yes
If the coin is a real Morgan or Peace dollar. The value is just for the silver, about $20.00.
The coin is a PEACE Dollar not a Liberty Dollar. 1927 is a little better date for the series with retail values for circulated examples from $16.00 to $30.00 depending on the actual grade of the coin.
It's a Walking Liberty half dollar with a value of about $13.00
It's a Walking Liberty half dollar with a value of about $13.00
10.000.000$
Two different types of silver dollars were struck in 1921 a Morgan Dollar and a Peace Dollar. On the front of the Morgan dollar above Liberty's head is E PLURIBUS UNUM and circulated coins are valued at $15.00-$19.00. The Peace dollar has the word Liberty above her head and circulated coins are valued at $85.00-$185.00