It's going to depend on the amount of wear on the coin. However, 1905 Indian Heads are quite common, and don't have a lot of value until you start looking at coins that have no wear at all.
If it's worn to the point that the portrait is pretty much an outline with a few major details, it's about a $1 coin.
If it's got less wear, to the point that some of the minor details are visible (like details in the feathers), then you're looking at about $2.
If there's just a little wear on the high points of the design, about $4-$5.