I didn’t recognize that gatefold because I’m only familiar with a few Allman Brothers hits. Never did their albums. Hey, maybe I will someday–I’ve got nothing against ‘em. I like “Jessica,” “Ramblin’ Man,” “Whipping Post.” Aside from that, uh, I know they had two drummers and they’re pretty much all dead.

There is that image in The Rainbow Goblins, yes, and then there’s a few others, lots of butt cheeks, but I think that’s only one with a goblin bent over doggystyle. The book is about seven goblins, Red, Orange, Yellow, Green, Blue, Indigo and Violet, and their attempts to catch a rainbow and lasso it so they can drain it of its colors, which they then drink and feast on like Bart Simpson eating frosty chocolate milkshakes out of the back of a truck. But the rainbow teams up with Mother Nature to trick them so they all drown in colors and die. Don’t fuck with Mother N, kiddos.

As a kid I remembered that particular image but it was because of the agonized looks on the goblins’ faces as they die, which creeped me out a lot more than anything in any of the numerous kids’ stories I read when I was young that also feature death-punishments, but those were almost all in text. That stuck with me enough that I didn’t realize the butt-cheeks thing much until I was older.

The art in that book is really kind of beautifully done though and the Italian Count guy who wrote it also apparently contributed to The NeverEnding Story, which I’ve never watched as an adult, but I know it’s commonplace on social media for people to share the “drowning horse” scene as a classic Kindertrauma moment.

The book does not appear to have won, or been nominated for, a Caldecott Medal. Pretty baffling considering how nice the art is.
Do you remember the Caldecott Medal? It was awarded yearly to whichever kids’ book had the best illustrations. It appeared on the book’s cover in a little embossed gold medal. When I took English classes in grade school our librarian introduced us to the Caldecott and there were a lot of books in the kids’ library that had them. A famous example of a winner is The Polar Express, though the first book I think of that won a Caldecott is also from the 1970s, and also heavy on rainbow color schemes:

http://www.amazon.com/Arrow-Sun-Pueblo-Indian-Tale/dp/0140502114

That book’s style is really unique!!! I think the Newbery medal is more famous than the Caldecott, though.