There are three prominant ridges in the occiput region.
The neck guard itself carries a single embossed ridge.
On the front of the helmet there is an embossed 'eyebrow' consisting of a single ridge, top and bottom. The edges of the crown of the helmet appear to have been 'knocked back' and decorated with a filed-in cable pattern reminiscent of the 'Celtic' style of Montefortino-A type helmets.
The cheek-guards are somewhat angular, with a raised central portion all around. The frontal curves are not simple.
Photos, (c) Jens Horstkotte.
References:
Fasold, P. (1995), "Ein Keltishe-römische Bronzehelm aus Frankfurt-am-Main", Provinzialrömische Forschungen. Festschrift für Günter Ulbert zum 65 Geburtstag (Ed. W. Czysz et al), p.81-88
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