Having just clicked the link and seen the photos, I just developed a strange medical condition, and turned a thorough shade of green...
you lucky, lucky bastard.
(I mean that in the best possible way, I hasten to add.
)
I'll send a PM in a moment about that.
I'm likewise rather interested to see if and how the geometry might (or might not) be found to have an association for this type of weapon too. Having seen his presentation on the subject, I'm certain it was used for some swords, but I am sceptical it was used for
all. But finding the same sort of ratios in a messer would be really exciting.