What is the value of an 1851 Baldwin S W V California twenty dollar coin?

Answer 1

Value of a real one would approach $100,000. There are many copies that were made before the Hobby Protection Act of 1972 and therefore are not marked "COPY". One of the major grading and authentication services would have to certify it. "S W V" would definitely indicate a counterfeit -- not likely to be worth more than a couple dollars as a novelty item. "S.M.V." are the letters that are supposed to be on the coin.

Answer 2

If you have a genuine Baldwin & Co $10 piece, it will be valued somewhere between $10,000 and $100,000, depending on the exact design and condition. But for every real one there are probably 10,000 that are fakes cast in lesser fineness gold, if they are even gold, and sold as souvenirs about 100 years later. Since they were made before the Hobby Protection Act of 1972, they usually are not marked as copies.