I have an 1846 silver dollar. It has some rusty looking material on it which I do not know how to remove. Does anyone know what the value of this coin is and how can I clean it? Please help.
Where did you get the coin? That does look like rust, but silver does not rust. Have you tried putting a magnet on the coin? It may be an off metal counterfeit.
First off..... Please whatever you do... Please do not attempt to clean it. I am looking at this coin on my phone so I am limited in the detail I can get..... However from why I can see, it appears that dollar, other than the crud growing on it is otherwise in exceptional condition. If that is the case, you may have something there. Something looks off and I can’t put my finger on it.... But from what I can see around the crud that coin should grade well..... If it is genuine and if it is in the shape it appears to be in, a professional conservation is the way to go if you want to keep the value in this piece.... DO NOT TRY TO REMOVE THIS ON YOUR OWN!!! Please! No scratching or rubbing. Not till we can determine if this is a good piece or not.
I did place a magnet on the coin to see if it was a counterfeit, but the coin does not stick to the magnet.
I dont know much about coins, so I don’t know how much this would be worth. Or if it is even worth paying someone to conserve it.
If it is a high grade quality dollar, it would be worth the cost of conservation. The professional grading services do this. Any coin dealer could handle that for you. It will cost some up front to do. But will be worth it..... I will caution you this... If you try to remove this crud, I promise that you will ruin any value that coin may have. Don’t do it. Don’t think about doing it. I’m serious. The quality dollars that bring the big bucks are ruined as soon as they are rubbed or scraped.
It looks to me like silver plating has worn away, exposing a base metal core that's corroded. Real 1846 Seated Liberty dollars are very hard to find, but fake ones are very easy to find. I see them available online for under two dollars, cast from copper (which wouldn't stick to a magnet, of course). It's hard to be sure with this much corrosion on the coin, but if this one came from the same place as the other one you posted, it's probably just as fake as that one.
Salt water recovery silver coins will sometimes have that type of look with that black corrosion. Can't really determine much from your photos though.