This magazine has very strange page numbering. It has a page 6, 6a, and 6b (and apparently also 6c and 6d). And there is a special part inside for the Firato '86 fair. It starts at (PDF) page 35 (after magazine page number 30), with the roman numbering I. This part goes on until roman page XXXII on PDF page 70. Next magazine page number is then page 63, which shows what you would expect from magazine page number 31.
Last magazine page number seems to be 96 (on PDF page 104).