Helmet methodology

[richsc]

Do you fancy proposing it for a paper?

Yes, that is what I proposed to the mods, and forgot to mention here. As Jasper says, somewhere someone has measured helmets, but not with any consistency or methodology. There is no way to actually compare helmets for head size, as you mention, which seems an incredible oversight by the academics, and something I"m sure the anthropologists would not have overlooked.
First is to see if this is a complete taxonomy of the helmet. I was considering that it has to be able to describe everything from a Montefortino to the Intercisa, and all the bells and whistles like bowl reinforcements, which I think can be lumped into "decorations", which is maybe not the best word, but a start.
It would be good to find some way to present this methodology. Jasper, any ideas?

You may note that the descriptions in the other post are the beginnings of an XML Schema, which is how I propose doing this.