One ounce silver walking liberty coin with markings oneounce999finesilver Winchester Indiana and a silver towne registered trademark on it no date.how much could it be worth?

Silver Town is a private mint. Pieces like this are often sold to raise funds for some community project at an inflated price but the resale value is usually determined by the current spot price of silver. With the current price of about $13, a dealer would probably pay $11 or sell for $15. You might be able to get a bit more if you are selling it in Winchester, Indiana.