Found These 2 US Dimes

The first one looks interesting. If you could back up some on the image so more devices could be seen that might help. When I have coin I suspect to be a doubled die, I take an image of the DD and one of a normal coin (from the same year). Cropping the images to the same width, gives me a better idea of if the coin is doubled or not. The first one looks like a possibility. (I rotate the same devices horizontal to make sure editing creates the overall sizes)
IE:

The devices are cropped to the same outside width using a common device to make the width the same. Perhaps a previous device edge or just on the outside of the current devices. That makes the width the same. If it is a DDO, the individual devices will be wider/taller. Looking forward to more images of this coin. The "E" on dime looks thicker.

The second coin looks like there was grease on the field or a polishing that made an area shiny. That happens and later on the shinny look disappears and looks normal. Either way there is no big interest in these. Just a distraction. It may have been a Feeder Finger Damage and not was removed. But no premium for wither of these.

The last looks like it is a circulated example in a much later die state. (Heavy die flow in the fields.) So if you can find a better/equal example to take images in the same lighting in the same direction, it will show if it is a doubled die or not.

Looking back.
That is another image of the same coin. I see the ding under the stem. It may just be die wear and circulation wear. The worst of both worlds. It happens.