It's hard for me to tell from those photos, but a USB scope isn't really necessary as long as the close-up photos are clear. Chris
Looks like Die Deterioration Doubling (DDD) Have a read from Wexler's: http://www.doubleddie.com/144843.html
My first impression was DDD but then I saw the "3" in the date. I would have to say now that it is a little of both.
