Keräilymessut in Finnish means collectibles fair, and that’s the only information on the back of this unused maximum card (issued on 30th January 1982) apart from what we see in the multiple postmarks.  We say “multiple postmarks” because what you see on the front is only part of the story.  On the back, there’s the same stamp and two more postmarks–one on the stamp, one to the left of it.  So in a way this is a “Super-Maximum” card.  Grade: 1