This photo was taken of the graphics underneath the flap of the prototype box for HeroScape's Swarm of the Marro master set.
The text in the upper left reads, "The Legend Lives On! The Battle of All Time rages on as Warriors and Heroes are summoned to Valhalla to explore the uncharted jungle. Create your battlefield, choose your army, and get set to wage war against your enemy."
If you're not familiar with HeroScape, read this review of the original master set and browse our other HeroScape resources.