[exmadscientist]

Which, as the article and other comments here make clear, has been changing back and forth over the decades.

In a situation like that, I think you kind of have to acknowledge the original drawings as the preferred state for things. Especially when just about anyone with training in this area would readily agree that that design aligns with what they'd all consider usual or correct.

[weinzierl]

Sure, it has been changing back and forth which makes the pristine version the least historically correct because few, if any at all, ever experienced that.