The pink pages are a variation that sometimes shows up in Fox Features books, and are somewhat scarcer than regular pages. The census does not include information about page color/condition, so we can't be sure exactly how scarce. Classic bondage cover, and was specifically referenced in "Seduction of the Innocent", the book that spurred on the congressional hearings that resulted in the comics code. Matt Baker cover and art.
To see more comics mentioned in Seduction of the Innocent, click here