Uncirculated would be about $25.00, circulated and dependant on condition $14.00 to $17.00. The range in price also reflects the mint mark. Also the changing price of silver could also affect price.
As always, the value of any coin varies with it's condition. A 1926 silver dollar, commonly called a Peace dollar, can vary in value from just the value of the silver in the coin to a bit over $40.00.
The value of the 1926 silver dollar is between $16 and $700 dollars. The wide range depends on the condition of the coin and the thinking of the person buying the coin.
It's not rare date of silver dollar coin. Depending on condition it's about $19-$20 (August, 2010) unless it's certified and has mint mark such as S, D, etc. (in this case can worth more)