pics as requested
in the first two pics you can see the mottled effect by using a phone case where the dust has gathered and marked the bezzel, i have tried to get this off to no avail.
The other pics is where ive taken the protected screen coverings off and tried to show the back and the screen that they infact spotless and totaly unmarked.
These phone are still fetching over £300 on fleabay and i can get £285 from a recycling company-gadgetpanda, but id rather give some one else the chance to own a iphone at a bargain price.
so the pics: