There's no official US silver dollar featuring a picture of a buffalo. Your coin may be a privately-issued bullion piece or novelty item.
If it's a bullion piece it should have wording on it indicating the amount and purity of the silver it contains. That will let you calculate its metal value by checking the current spot price of silver at a site such as kitco.com.
It is a common coin and only worth its silver content, which is about $12 at the time of writing.
A dollar
how much is a 1799 silver dollar worth
Buffalo nickels, like modern nickels, are made of 75% copper and 25% nickel, NOT silver. 1935 is a common date, worth a dollar or two in average condition and upwards of $25-30 if uncirculated. A 1935-D is worth a little more.
A 1921 Morgan dollar is worth about $25.00
All silver one dollar American Buffalo coins are dated 2001. Look at the coin again and post new question.
It's worth one dollar.
The silver one dollar American Buffalo coins are all dated 2001. This is the only year the U.S. Mint made this coin. You may have a 1 ounce "Silver Round" dated 2002 made to look like the official coin but it is not a U.S. Mint product. Take it to a local buyer of scrap gold & silver for an idea of value.
Silver spot price = about $14/oz
A 1992 American Eagle Bullion Silver Dollar in MS65 condition is worth: $24.00.
3-19-12>> It is worth its silver content of around $30.
1980 would make it a Susan B. Anthony dollar, and it's still worth one dollar.
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.
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
Both versions (Proof & Uncirculated) of this coin have the same average retail value of $115.00