Either I missed it or any mention of the Troublesome Tankers weren't in the Ripley Catalog Collection. Or maybe they are mentioned in a Catalog he hasn't acquired yet. Might anyone know more about these like when were they released, for how long and possibly what set or train they were included with? Maybe they were an exclusive limited release and never sold in retail or possibly a limited giveaway at a Plarail Expo or Tokyo Toy Show. Anybody?...Anybody? 
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