SUPERSPI was a magazine produced by The Socialist Party of Ireland, a group that existed between 1971 and 1982. There’s more details on them here and here.
The magazine itself is actually quite good with a witty enough cover and some decent columns. The story about the ITGWU conference is one in particular that I enjoyed. I’m not sure how many issues of it were produced .
The full magazine will appear in pdf form on The Cedar Lounge in due course.