This quarters reverse is a dark copper Color and the obverse looks like a little bit darker silver color than usual . Is the cloud missing ? Is it anything to keep?
Weigh it. If it weighs close to 5.67 grams it's a quarter. If it is light (the amount of weight for a clad layer on one side) then a missing clad layer is possible. I wouldn't get my hopes up. But weight is important. There are billions of coins and very few true errors. It's around 100% that your coin is just rusty/ environmentally damaged. When the clad layer is missing, the copper color is unmistakable. There are some great photos here in other threads. Search around.
