It appears to have been ground down, probably with a Dremel or similar. Even the obverse appears to have been buffed. Perhaps someone with a new tool kit playing around.
I keep stuff like this when I find it roll searching. I've got a couple with stickers from CeCes Pizza. They aren't worth anything but conversation pieces.
So I was reading about a split planchet on a website someone on here gave me... Could this dime possibly be that? I copied what it says on the site along with the picture they have posted...... The coin to the left is an example of a split planchet. Planchets can split before or after the coin is struck. The example to the left was split after the strike. A split cent planchet is usually the result of deep laminations due to poorly mixed metals or impurities. If a coin splits after striking, the result is usually a coin that is fully struck on one side, and may or may not show a phantom strike on the other due to pressure. If a coin splits before striking, the result is usually a weakly struck coin due to the fact that the split planchet is too thin to fill the space between the dies.
That's what has me looking at this, they almost look like separate coins altogether. Not almost they do look like different coins. It's Friday my eyes are tired I gotta be missing the obvious here.
Grinding would leave circular marks. The lines on the obverse of the coin all radiate from the center. @Kellyrae18 can you post the pics so they show up in the post rather than as an attachment? Also, have you weighed the coin?
At the bottom of the reply window there is a button to upload pics from your computer. It's next to the Post Reply button. After you upload the files there are two buttons associated with the picture. One is Thumbnail the other is Full Image. Click on the full image button. That will make your pic show up inside the post.
It has not been ground down. Initially I thought "torched" but no heat bubbles so...this may be some actual Strike Thru but I've never seen one like it and still believe it is not a product of the US Mint.