From your description the coin is a Americain Silver Eagle that is made from one ounce of 99.9% pure silver, value as of today is about $19.00
If you mean a American Silver Eagle bullion coin dated 2005? Yes, there is.
It's a Silver Eagle not a Lady Liberty coin no US coin is called a Liberty or Lady Liberty. The coin is made from one ounce of silver and the value is whatever the spot price of silver is at time of sale. The value now is $18.15.
The date is on the front of the coin under the "walking Lady" regardless of that, value is about $18.00
That's a one ounce silver round, so the value varies with the price of silver. As of 20 June 2012, silver is $27.90/ounce.
Please see Related Answers:
The woman is Susan B. Anthony, and the coin is still worth one dollar.
It may not be an American Silver Eagle coin the first year they were struck was 1986 and are not Troy ounce coins
Assuming the coin is circulated and has no mintmark ,your 1926 PEACE DOLLAR is common. Value is $17.00-$29.00 NOTE: No US coin is a Lady Liberty coin.
Liberty Bell on the front
On the front of a Trade Dollar it has Lady Liberty seated facing the left and on the back below the eagle TRADE DOLLAR. A Morgan Dollar has the head of Lady Liberty on the front.