Tales of Horror #4

 Gredown's Tales of Horror #4 was published c.July 1976:

The cover is likely by Phil Belbin and is based on two full page illustrations by Miguel Gomez Esteban for the lead story The Black Cat:

And here's a scan of the splash page to El Gato Negro:

The story contents:

The Black Cat, originally published as El Gato Negro in Dossier Negro #17, August 1970 

Night of the Mockers, originally published in Beyond the Grave #5, April 1976

The Unbelievers, originally published in Monster Hunters #4, February 1976

That Old Gang of Mine, originally published in Monster Hunters #4, February 1976

The Devil's Vicar, originally published in Ghost Manor #27, January 1976

Some of these stories were subsequently reprinted in other Australian editions, for example: Night of the Mockers in Planet Series 1 #2 Unusual Tales; The Unbelievers in Monster Hunters #1 and Voodoo Tales #1; and The Devil's Vicar in Ghost Manor #3.