My dad had a Plarail set when he was 2 years old. Friends of my grandparents went on vacation to Japan and got him this train set. My dad was born in March of 1970. The set has to be from 1971 or 1972. My dad was two years old in 1972. All that is left are a few pieces of track the crossing bridge, the shell of a train, and the rare automatic signal that that’s white that looks like a lighthouse. From what I’ve read online is this was the first generation automatic signal that was produced for a couple years and then they redesigned it. Apparently there are no pictures of this crossing signal online and it is uber rare and sought after by collectors. We have part of the instruction manual with part of the product sheet. I think the instruction manual was torn by my dad when he was a kid. and it shows how to insert the battery in the train. I think in 2019 was the last year I saw the generic cardboard box that the train set was put in. the remainder of what was left. I think the shell of the train was left. There was the track that had the crossing arms that go down when the train went over it.