ViewMaster. Finnish edition.
All right, I'm man enough to admit it. I'm obviously a stinkin' liar. For years I've kept saying there was ever only The Christmas Special we got in the 80s. Today I've learned there was at least one other thing: a set of Viewmaster reels. Copyright year for this is 1985. Here's a pic from a closed auction
And if there was any doubt, a pic of a single reel (and I can confirm the language is Finnish)