stratochamp wrote in Imagine Magazine 1 April 1983:The very tough one to find (especially on this side of the Atlantic) is Issue #0, the full-scale mock-up of Issue #1. It has the same cover painting, but there is no # or price or date on the cover. Inside it is listed as Issue 0 Number 0. And there are 10.33 blank pages (including the inside cover) saying (basically) Your Ad Here. I have not checked down to the last detail, but I think they are the same otherwise (articles, comics etc.). I only know of one other collector that has one (I'm sure there are more, this just isn't at the top of collectors want lists and as such isn't discussed as much).
stratochamp wrote in Imagine Magazine 1 April 1983:Volume 1 is April 1983. Issue 0 Number 0 (as it is listed on the title page) is September 1982. There are no other dates listed.