Types of scratches on trading cards (creases that can be seen at different angles)
As you can see in the image below, it is difficult to see the crease from the front.

With some products, you can see where the crease is by changing the angle or lighting.
Items with such inconspicuous scratches or creases
To make it easier to understand, from the second image onwards, we have taken photos of the cards at different angles and with different brightness settings. 