Marites, you need to study and learn the minting process better so you can answer most of your own questions. You seem to be looking too hard for errors that are just worn or damaged coins.
Were the little red marks on the first picture supposed to show where you wanted us to look? It's much easier if you say what you think you see (Is this a doubled die coin?) or at least the area of the coin (Is the rim area above the head an error?). Stay well there in LA!
I thought the red mark is the guide of my questions yes I will do that next time thank you. You too stay well...