Note: The numbering started with 1 in the summer of 1972 with 38,000 copies on 125 B5 (176 x 250 mm) pages (closest ISFDB format is pulp). After issue #60 the format changed to the larger A4 format of 96 pages in 1985, then back to the A5 in a black bordered format in 1993 which persisted until publication ceased.