DC's Detective Comics Vol 36 Issue 426 August 1972 "Killer's Roulette!" Does the Wheel Spin for Batman or Bruce Wayne!?!

More "No Covers"

But this time, It's Detective Comics!!!

I know! Right?

Marvel Team Up Vol 1 16 December 1973 "Beware The Basilisk My Son!" Spidey and the original Captain Marvel...

Another Team Up

Another comic without a cover