Spawn (1992 Image) #10

"Crossing Over!" Guest-starring Cerebus. Story by Dave Sim. Art by Todd McFarlane.

Cerebus the Aardvark takes Spawn on a surreal journey and exploration about the politics of the comic industry and the rights of creators. Featuring uncredited guest-appearances by Superman and many major characters from the world of comic books (arms reaching through prison bars). 

Cover price $1.95.