Crack on slab or Inner well? 0

[JoshTG]

Hey there, I just won a book on Ebay, and noticed the slab may be cracked. I messaged the seller and he said he will check the book tomorrow and let me know before i pay, I just wanted to get the opinion of The message boards because i don't own many new slabs. Do you guys think this is a crack or the Inner well?

Any help would be gladly appreciated.

[theCapraAegagrus]

No idea. Let us know what the owner/seller tells you.

[Krismusic]

I would guess its lighting reflecting but more inclined to guess crack or lighting glare. 

Edited October 16, 2019 by Krismusic

[Krismusic]

oh sorry didn't look at the back cover pics I would go with inner well 

[Donald Jack]

It looks like one of those wedges they sometimes put in.  Kind of a long straight line to be a crack (but then plastic is funny that way).