Bronze, hemispherical helmet bowl, somewhat flattened. At the top of the helmet there is a small 'pimple'. This probably represents where the helmet was fixed in order to be spun during its formation.
Two rivet holes on each side for the attachment of the hinges for the cheek guards. On the right these are side by side but on the left, they overlap slightly.
There are two holes in the neck guard, one round and one square.
In the region of the ears, there is a 'step down' of the helmet bowl, which then flares out into the neck guard.
This helmet was seemingly never fitted with a crest plume holder.
NOTE: This helmet is recorded elsewhere in Robinson (p.39) as being a "Coolus-I" type. Klumbach (p.25 & Taf.12) also describes it as being a Hagenau helmet. Both sources give the same accession number for this helmet (68.270) on display at Bonn. Robinson (on p.83) specifically states that he has included this helmet with the Coolus group because: "it lacks the characteristics of a legionary infantry helmet". Why, then, has he included it under both headings? To be sure, the workmanship is not of the highest order and is certainly inferior to that normally associated with the Coolus/Hagenau type. In general, it does appear to be of this type, rather than the AI group (of which very few examples are known anyway.) Nevertheless, in this catalogue it will be found recorded under both headings.
Photos, (c) Karwansaray
References:
Klumbach, H. (1974), "Römische Helme aus Niedergermanien", (Rheinland-Verlag GMBH Köln), p.25, Taf.12
Robinson, H.R. (1975), "The Armour of Imperial Rome", (Arms & Armour Press), p.39 & p.83, Fig.234.