This has all the signs of a loss of corporate knowledge. I don't think anybody is going to find type X any more, and you may very well personally have a better

This has all the signs of a loss of corporate knowledge. I don't think anybody is going to find type X any more, and you may very well personally have a better recollection of its previous existence than anybody working at the factory any more. You never know. This factory has changed hands so many times over the decades, always as a small part of a larger portfolio since it was acquired the first time, there's no way it could have been as prosperous as possible the whole time. I can only imagine there was some executive, maybe even an engineer who knew everything about every product, who had to cut back production of everything but the single best-selling type for financial reasons at some point. Maybe back when M, X, and who knows how many other types, had a well-known meaning across the factory. And all knowledgable parties involved now long retired decades ago, and the company/factory changing hands so much with all kinds of shareholders, none of them capable of making more of it than it already was.