Donngal wrote:I have seen the documentation on how they historically were attached. My struggle was with how the customer requested it and what was gonna be practical and something maintable for the rigors of SCA style combat.
We were steering away from leather attachments and such.

I'm curious what you have seen.
There are four methods that I know about that were found with these helmets -- all strictly metal. No evidence of leather.
Here - a nice Russian fellow created the attached image for some Polish folks who were interested (that's why the text is Polish).
In all cases, the "cord" put through the maile was an iron wire.
I can clarify the diagrams if anyone is interested.
The last one, with the ring "verveiles" should work quite nicely for SCA issues without modification.