Uncanny X-Men #510 J.Scott Campbell Retailer Incentive Partial Sketch Variant CGC 9.8 Signature Series comic book, from Marvel Comics, which has been signed by cover artist J.Scott Campbell!!
Super super rare... According to the GPA sales database (see image 2), a similar signed variant edition sold for $13,000 in September 2018 and an unsigned CGC 9.8 copy sold for $12,500 in July 2018.
There are only 4 CGC 9.8 Signature Series examples of this book on the planet!
It has been professionally graded by CGC, the largest independent comic grading company in the world, and slabbed in a sealed protective case.
The grade is guaranteed to be high investment grade 9.8 (NEAR MINT/MINT) and this is a yellow label CGC Signature Series, which means that an authorised CGC representative witnessed the signing and this also acts as a Certificate Of Authenticity.
As soon as the comic is signed, it is removed by a CGC authorised party and submitted straight to CGC for grading and encapsulation, guaranteeing the authenticity of the signature.
You can check the validity of this item and the signature by entering the 10 digit number on the label at the CGC comics web-site.
There are no cracks on the case. Any glare is just the scanner on the CGC case, which can cause reflection.