It seems the entire page is unsourced, someone ought to add a few references; talking about Wikipedia oddities, the A class is listed under 001 class, which isn’t an error, but I find it bizarre they refrain on titling it the A class, same story with the C class. It is disappointing some errors exist, but I suppose it’s a miracle we have any pages on the site at all, seen as the interest is a lot smaller than that of Britain or Germany.