Originally Posted by
Phil_gretz
I'm seeing depth and shadow, and not the marks of a quick release or wheel nut clamping, but of someone using a rotary tool to grind inward, creating a cratering effect. Note the texture, which, to my eye, looks like the rough scarring that a small rotary bit makes when one is an amateur grinder. I've done quite a bit of grinding and milling, and have fixed some boogered-up bubba work, and this looks like it to me. It has depth. At least to me.
At first glance it looked to me like it had depth but when I recognized that this frame has two layers of paint then the illusion was clear. The first layer is white and the second is red. Because the white has some swirls from the QR teeth it has a gradient effect that makes it look like it has depth that run towards the slot, kind of like contour lines on a topographic map. But the metal isn’t buggered up in the least. Once the OP has photo privileges maybe he will post a photo without the wheel in place.