1951 S Penny And 2016 D KY Quarter

Keep in mind these devices are incuse on the quarter. So a contact mark usually doesn't show on them. But it will look raised. If the contact mark is deep it might show when it hits a device.

While this looks raised, it is actually incuse like the devices:

When the coin is rotated 90 Degrees, then you can see that it is sunk into the coin, just like the bag mark into the coin.

Contact on a coin will make an incuse mark. But also the area around that contact mark may also have a wave of metal movement. This distortion always tells me this happened after the strike. If a coin is struck through something during the strike, that way will not be there as the die forms around the struck item and prevents the wave of metal from forming.

Note the area affected is only the wire struck through, without distortion.
Here is a side by side of this coin and a different one that shows the distortion/metal movement wave:

So a contact mark is incuse and metal movement show it happened after the strike. ( PSD)
CoopHome incuse metal displacement PSD

Depending on what caused the mark the shape will often copy that. On the examples I posted, the length and shape of the wire. I'm not sure what made the mark on your coin?

Checking with light direction, the mark looks incuse. (devices also incuse, so the light reflects on the same sides) So with these devices incuse on the coin, they are raised on the die. The incuse area would have to be something picked up on the die because it caused a incuse mark on the coin. (pretty much rules out a die gouge) So it would have to be a struck through that stuck on the die or was pressed into the coin at the time of the strike. (Had to think on this one a while to figure it out) Struck through error. Not a die gouge.