Ad for Cerebus by Dave Sim, 1981.

Ad for Cerebus by Dave Sim, 1981.

Promotional ad for Cerebus #40 by Dave Sim, 1982.

Promotional ad for Cerebus #40 by Dave Sim, 1982.

Promotional ad for Cerebus #33 by Dave Sim, 1982.

Promotional ad for Cerebus #33 by Dave Sim, 1982.