Late Roman iron helmet

[Robert Vermaat]

In this case, like in the Deir el Medina helmet, the hinges are external, so, no gap, no bands.
The Deir el Medina helmet has no border holes around the edges of cheeks and neck-guard too, but it possesses them along the lower border of basal ring.
The form of the 'eyebrows' is very interesting too. Fourth century 'eyebrows' don't have usually that horizontal extension at their ends, but those of the Deir el Medina helmet have it.
I would bet that the neck-guard is joined to the bowl by means of a hinge too.

I think so too. The neckguard makes me think of the Deir el Medinah, too.

Probably, late Third century, like Cesar has pointed out.

I second that. the top is new, but all the attached pieces look like earlier helmets.