In 1921 two types silver dollars were issued and the values are very different. If the coin has the motto E PLURIBUS UNUM above Liberty's Head it's a Morgan dollar and the value is $37.00-$41.00 for a circulated coin. If the coin has the word Liberty above her head it's a Peace dollar and the value for a circulated coin is $80.00-$175.00
Both coins are dated 1921.
it was one dollar but now about 10 20 dollars
There are no U.S. notes with the series date of 1921
what is a 1921 liberty head gold one dollar coin worth
Please check your coin again. 1921-dated Peace dollars were only struck at Philadelphia. If your coin has a "D" above the "DO" in "DOLLAR" and the eagle's wings are outstretched, you have a Morgan dollar rather than a Peace dollar. There's more information at the question "What is the value of a 1921 Morgan silver dollar?"
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it was one dollar but now about 10 20 dollars
There are no U.S. notes with the series date of 1921
what is a 1921 liberty head gold one dollar coin worth
Please check your coin again. 1921-dated Peace dollars were only struck at Philadelphia. If your coin has a "D" above the "DO" in "DOLLAR" and the eagle's wings are outstretched, you have a Morgan dollar rather than a Peace dollar. There's more information at the question "What is the value of a 1921 Morgan silver dollar?"
1921 is by far the most common date for Morgan dollars -- current value is about $17.00
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There's a Peace dollar but not a war dollar. Please see the Related Question.
1922 silver dollar with closed eagle wings
A average Mint State 1921 Morgan is $30.00-$40.00
If the coin is a real Morgan or Peace dollar. The value is just for the silver, about $20.00.
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twenty one dollars