What is this Inside the CGC Slab? 0

[andamovie]

I recently got some slabs back from CGC and found these gray marks inside the slab. Can someone tell me what they are?

Is this scuffing internal to the case?

Edited April 25, 2020 by W. M.
Adding additional images

[andamovie]

Maybe referring to this?

[Deadpoolica]

On 4/25/2020 at 7:28 PM, W. M. said:

I recently got some slabs back from CGC and found these gray marks inside the slab. Can someone tell me what they are?

Is this scuffing internal to the case?

I would contact customer service about it & they should resolve this issue for...most likely they'll do re-holders for you free of charge

[The Lions Den]

On 4/25/2020 at 7:28 PM, W. M. said:

I recently got some slabs back from CGC and found these gray marks inside the slab. Can someone tell me what they are?

Is this scuffing internal to the case?

CGC should be able to do redo these for you...give 'em a call...

[pemart1966]

On 4/26/2020 at 11:04 AM, Bax77 said:

I have heard the rumor that CGC is scuffing the cases to avoid Newton rings. Not sure where I read this, but I'll post a link if I can find it.

Fixing one problem but creating another?