I think I know the answer to this question, but I would like other people’s opinion as well. Sorry for being long-winded. The marks on the front seem as though they were pushed through because I can see an image protruding from the back of the coin, which could mean this was deliberately done after the coin was minted. Not sure why the two indentations are not the same shape if someone used a tool to do this. The image on the back of the coin, where the Eagles leg is missing is also indented but I don't see a protrusion on the front of the coin and the shape is different than the two on the front of the coin. The lower indentation on the front of the coin is almost perfectly round but the extrusion on the back is not. I've been looking at strike through Errors and die chips to see if they could be responsible for the condition of this coin. For those that don't know what a strike through coin is or a die chip, below is a definition of both. So now you have all the reasons I question what seems to be the obvious. All comments and views are welcome.
Struck throughs occur when a piece of foreign material comes between the die and a planchet during striking. The coin is said to be “struck through” the foreign material, which leaves behind an impression on the coin's surface.
Die chips are small, isolated chunks of metal that break away from the die, usually in the middle of the coin away from the rim. A die chip on a coin appears as a raised mound of metal, and these die chips can range in size from very small to quite large.