Quote Originally Posted by 32t View Post
Our ancestors were not idiots.

There is a reason why things were done even though we might not see it.
I’m imagining an assembly process in which several wedge blanks were stacked and clamped on a rod (using the rectangular hole to align and hold them in place) and then filed to shape all at one time. Each final wedge would be finished after the wedge had been peened into place between the scales. Plausible?