Definitely some interesting stuff there Sun, as Super has already said the 4 car Shinkansen is almost certainly not Plarail. As you know I like dabbling in non-PlaRail, but its not a type I recognise, the connectors look quite a bit different to the average and the power car looks to be the 2nd (or 3rd) car depending upon which end you start counting
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Happily collecting things all my life...
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