So... do you have a question or something? all you did was post a picture. We figured you wanted to know the condition of the coin. Anything else? perhaps value?
Arrrggghhhhhhhhh---a good date like that, and coin homicide. Did someone take a sander to that thing????
Before we get too carried away about what happened to the coin please keep in mind that this is actually a fairly common date in AU. It is only in MS grades that it is prohibitively scarce and expensive. Quite a few of these coins were treated similarly with the hope of making them look "BU" and to sell them for more money.
"I found these real old silver dollars among my grandmothers stuff. What are they worth? I cleaned them up real nice so they would look better."