Amazing Spiderman Vol 1 Issue 345 VFN-

Second appearance of Cletus Kasady (Carnage) in Gun From the Heart!

Through Silver Sable (and without his knowledge of who the real boss is), Justin Hammer hires Spidey to take down Cardiac and then hires Boomerang to take down Spidey; Eddie Brock is freed from prison by the Venom symbiote, but as he leaves his cell, a little drip from the costume stays behind to keep Cletus Kasady company; Venom cameo.

Picture of actual comic book in protective film cover