It would be worth spending a few dollars to have your coin authenticated. There are numerous counterfeit dollars on the market. If genuine, its retail value as of 10/2008 ranges anywhere from about $330 in very worn condition to $870 in almost-new condition.
FWIW, all U.S. dollars except for the current Presidential series will have an eagle on the back, so that's not really a distinguishing image.
Although it has an Eagle on the reverse, the coin is not a Eagle coin, it's an 1885 Morgan dollar worth from $23.00-$30.00
On a 1926 Peace dollar the mintmark is above the eagles tail not below it. Look at it again and post new question.
As of today the value is about $17.00 it's a bullion coin and the value is just for the silver. FYI it's called a Silver Eagle or American Silver Eagle coin
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A 1993 American eagle Bullion Silver Dollar in MS69 condition is worth: $ 50; if its mint state is PF69, the value is: $275.
A 2002 silver eagle is worth whatever one ounce of silver is worth. At the time of writing, an ounce of silver is worth about $22 and a silver eagle would be worth the same. However, silver fluctuates in price on a minute to minute basis.
Although it has an Eagle on the reverse, the coin is not a Eagle coin, it's an 1885 Morgan dollar worth from $23.00-$30.00
The silver Eagle bullion is worth one dollar in United States dollar. It was first released in the United States on November 24th 1986 and is the only dollar coin.
Silver spot price = about $14/oz
This is called a bullion coin. They are made out of 99.93% pure silver. They are worth about $43.27 because of the value of silver. They will be worth the same amount as the value of silver per ounce. See the related link below for the value of silver per ounce.
A 1992 American Eagle Bullion Silver Dollar in MS65 condition is worth: $24.00.
It's a 1924 Peace dollar not a American Silver Eagle and the date is very common with values of $14.00-$19.00 in circulated condition
3-19-12>> It is worth its silver content of around $30.
On a 1926 Peace dollar the mintmark is above the eagles tail not below it. Look at it again and post new question.
A 2004 American Silver Eagle in Uncirculated condition is worth about $17. Proof is worth about $40.
You are probably asking about American Eagle silver dollars. These are worth about the spot price of silver. Currently they are worth about $32.
1979 makes it a Susan B. Anthony dollar, which contains no silver, and is worth one dollar.