Dollar Very

What is the estimated value of a 1890 US Silver Dollar. It doesnt have any marks on it but it is very dirty.?

It has Pluribus-unum on the back with a liberty head?

By “it doesn’t have any marks” I’m assuming you mean it doesn’t have a mint mark on it. If it is very dirty it is likely not going to be worth much beyond the value of the silver in it, say $20 or so. And cleaning it wouldn’t be a good idea, scrubbing causes scratches which destroy any type of value to a collector. Cleaning solutions can sometimes give it an artificial tone which is unattractive or it could get an uneven tone.

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