No one knows 'cacat' like cacatman!!
I alluded to that in my answer to his post. It's one post down.Ya this is total mularky and a highly uneducated assumption.
Ita likely that there is NOT a pair for every serial of the highly produced runs. When a pair was forged and was not up to standards it was likely melted back down and turned into another pair. This would of been more common in the earlier pairs before the process was "perfected"