Hello, I've a golden coin and I'd like to know how much is it worth. 1. What kind of coin do you have. 10 mark - Otto Koenig v. Bayern - golden coin 2. What year the coin was minted. 1912 3. Where was the coin minted. Don't know, however there is a small "D" letter under the Otto's profile As for more professional questions I don't have proper knowledge to answer them I'm afraid. As far as I can say, the coin is in very good condition, images and letters are sharp, it's not damaged at all. As for cleaning it - I didn't do that and I posses this coin since 1996, however I can't determine if it has been cleaned before. PS. My English got a little bit rusty, so sorry if it was hard to understand me
There was only 140,000 minted that year. I would estimate 210-255 somewhere in there. But don't take it as 100% correct value could go lower or higher.
Bavarian 10 mark piece, .1152 ounces of gold. Probably worth melt value, a little under $200 as of today.