Unbelievable, how iconic models or other things are carelessly destroyed or "disappear" otherwise. The model couldn't have been that large. Lucas or someone on the crew could easily have stored it in the garage or something and made a fortune selling it to a fan later. I think this is something that happened in Aliens as well. They didn't keep the original Narcissus model from the first film so had to reconstruct it from one of those "Making of..." books, could have been "The Book of Alien" which I also bought back then. Apparently even the blueprints were destroyed, really strange. Of course I can understand about the sets, they take up lots of space, but for those smaller models, it seems such a waste to me.... So you had that Panini album as well ! In fact that was, along with the soundtrack tape and a few action figures, the first SW item I had, no wait, the very first one was that 1977 booklet they sold right at the movie theater and was not available elsewhere. Great observation! In fact your first option is the correct one. I wasn't even aware that sticker album was available in just those two countries. I know the publishing company is Italian, but thought it would be widely available elsewhere too, in the respective translations of course. Sadly I can't find my copy anymore, I probably must have given it to my son at some point.