Issue: #3
Last valuation update: 2026-10-06
First appearances: Doctor Skull
Creators: Pierce Rice, Art Helfant, Louis Cazeneuve, Alfred Harvey, Joe Simon, Al Avison, Al Gabriele, Bob Powell
Characters: Black Cat, Doctor Skull, Red Blazer, Spirit of '76, Spin Hawkins, The Zebra, Phantom Sphinx, British Agent 99