1. Good (G): A coin in good condition, with noticeable wear and tear but still legible and with most of its original design intact, can be valued anywhere from $10 to $20.
2. Very Good (VG): A coin in very good condition, with moderate wear but still clear and readable, can be valued between $30 and $50.
3. Fine (F): A coin in fine condition, with light wear and all of its major design elements clearly visible, can be worth anywhere from $60 to $80.
4. Very Fine (VF): A coin in very fine condition, with minimal wear and excellent detail, can fetch prices between $100 and $200.
5. Extremely Fine (EF): A coin in extremely fine condition, with almost no wear and sharp, well-defined details, can be valued from $200 to $300.
6. Uncirculated (UNC): A coin in uncirculated condition, showing no signs of wear and with a full mint luster, can be worth anywhere from $350 to $450, depending on its overall quality.
It's important to note that these values are just general estimates, and the actual price of a 1906 one-dollar coin may vary based on factors such as the specific condition of the coin, its provenance (history of ownership), and the current market trends. To obtain a more accurate valuation, it's advisable to seek professional advice from a numismatic expert or refer to reputable price guides that specialize in coins and currency.