A number of subtle and not so subtle changes to the script (and art) took place between the Rex Havoc stories in the Warren magazine 1984 and their collection in Warren Presents 14 a couple of years later. Here are just a few examples.
Above: Warren’s 1984 #4. Below: Warren Presents #14.
Above: Warren’s 1984 #4. Below: Warren Presents #14.
Above: Warren’s 1984 #4. Below: Warren Presents #14.
