the copy in your post appears to be signed in the lower left corner, but hard to tell if those are printed sigs or hand written. if they all have them and are printed sigs, then just crop that pic to the edges and submit it. if it's hand signed, then find a pic on the net of an unsigned copy, I'm sure there's some at the publisher's site or on google image search, if you know how to copy and save a pic (with no watermarks, sometime they're hard to see). CPG won't want to use your pic if the sigs are hand-signed, as that may confuse people who are looking for that book unsigned or wonder why the one they bought doesn't have those sigs.

CPG doesn't list values for signed comics, so if ALL of that edition were signed, then it won't be on the site. If only some were signed, you can submit a pic/scan yourself, it's faster. And if that's really cover #9F of volume 3, then they're also missing the D & E covers.
Save a GOOD cropped-to-the-edges pic of an unsigned one with no watermark to your computer/phone first. then go to the page that issue should be on (https://comicspriceguide.com/titles/grimm-tales-of-terror/9/pkpubsq is vol 3 #9 2017-18 series), click on the Variants tab, click on the red 'Report Missing Variant' button in lower right after the other covers, and fill in the info boxes as best you can, and upload the pic from your computer/phone, and they'll get to it when they get to it. Unless they only did signed ones, then it won't be listed.
edited by collectibleshop on 5/12/2020
edited by collectibleshop on 5/12/2020