I have seen these like this all the time. As a matter of fact I just sent one with the same appearance to a fellow member. Mine was one of my pocket pieces I used to carry around and that is when it got the color as all are describing in this thread, it was real black when I started but I guess rubbing in my pocket after awhile it took on the lighter gray color except for on the devices those looked kind of polished also because they were what rubbed most on the pocket material I guess