I would agree with Faydes Mom. It looks like the straps used to hold the collection basins. They almost look like the billet holes (like how your belt attaches). What is weird is that they are not appearing to be discolored like pin-fire scars, which are usually white. Which makes it seem like a scar tissue formation from wearing the straps almost like an embedded collar. Still there is no discoloration of the skin. So, I am a bit at a loss. I would say that she has had some adventures. I know there is a brand registry for each state so you could look her up based on her brands. I would not worry about her scars to much. That page of her life is over forever and that's what really matters.