How will large marker lines over store stamp affect grade? 0

[RLR001]

I am having my collection evaluated by a CGC dealer to sell. He found this store stamp on the Fantastic Four #50 with two marker lines (1-10/16””x3/8” & 1-1/2”x7/16”) through part of the address of the store stamp. I had graded the comic a FN 6.0 before this defect.  How would this affect the grade?

[B2D327]

Does the marker bleed through the page and\or the inner pages?

[RLR001]

It affects the inside of the back page but not the inner pages.

[faster friends]

5.0

[theCapraAegagrus]

Yikes - that's hideous. Probably a 1.0 grade lower.

[The Lions Den]

I'd agree that 5.0 is a reasonable grade for this...

[Mr. Zipper]

That really unfortunate. The store stamp would have had no impact at this grade level and also provides a peek into its history. The medicine was far worse than the disease.

[pemart1966]

That stamp, or what's left of it, has my interest piqued.  Anyone ever deal with "Comic King" in Brooklyn?  Were/are they a store or mail order only?  Any monster books show up there?

[Krismusic]

I would say 6.0 to 5.0 it would drop it a bit

[Deadpoolica]

5.0