New Late Roman Helmet from the Fernpass, Austria

[WorkMonkey]

I am not telling that you aren't right about this one, Stuart, but base rings or brow bands are usually attached to the bowl halves by the inside :?

aren't late roman ridge helms usually constructed in two halves?

This one isn't, so it doesn't appear to be an average helm where average rule of thumbs apply.

You just have to look at the nasal, there is a huge gap between the eye pieces, and what exists of the helm, this had to be riveted on to something solid, it wasn't just hanging there, so whatever the case, the brow band was atleast that deep, to cover the gap from the bottom of the bowl, to the bottom of the eye guard. This appears to be the exact same depth of remaining material at the back, so it couldn't serve as a neck guard, because it wouldn't protrude from the brow band, because the brow band had to be atleast that depth.