Decades before Promethea #32, there was Cerebus #20. The Mindgames issue. Which folded out, to create… this.
One of the most groundbreaking comic books of its day – and still is thirty years later. Whatever you think of the man, his views and his politics, Dave Sim is deservedly one of the few comic book geniuses.
Rmember that when you see the four page foldout in Superman Unchained #1, Sim was doing this in the seventies.