As originally shown in the references cited below, the crown had a bulbous plume holder that was completely unadorned. It rose from a 'Maltese' cross like plate. However, the helmet as it is now displayed, does not show this feature. This suggests that it was originally a 'restoration', which the museum now feels cannot be justified and has therefore removed it.
The helmet brow, the ear openings and the rear of the helmet skull have bronze sheet decorations soldered on. The ear decorations are plain but that on the brow resembled hair and the occiput sheet has a scale motif. The latter continues down over the neck guard. In front of the ear, there is a shell-like semi-circular decoration, again made from copper-alloy sheet.
The convex neck guard slopes down at a very considerable angle, around 45 degrees.
The ear guards are quite plain except for an embossed simulated ear decoration.
References:
Robinson, H.R. (1975), "The Armour of Imperial Rome", (Arms & Armour Press), p.100-1, No.277-79
Klumbach, H., (1974), "Römische Helme aus Niedergermanien", (Bonn), p.48-9 & Taf.35
Curle, J., (1915), Journal of Roman Studies 5, 81, Abb.35
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