I have a 1964 js silver dime that has heads on both sides, I can tell that the coin was made into a double headed coin after mint but it was done very well. Both sides are 1964-JS stamped. What might this coin be worth?
If the 2 halves unscrew apart, more than if no threads, but they sell in most magic shops for a couple of dollars. Larger coins such as Dollar coins go for more. eBay solf auctions is probably good indicator. Welcome to the forum!