Found in the excavation of Augusta Raurica in 1967 and with samian ware dated to between 200 AD and the first half of the 3rd century. On stylistic grounds, however, this helmet belongs to the 4th century.
Like all helmets of this type, the skull is fashioned from two curved sheets of iron, riveted at the crest and the joint covered by a strip of metal with a 'U-section', which is riveted either side and through the top. The approx. total width of the joining crest is 37mm, with 10mm either side. Both the helmet bowl and the cheek guards have semi-circular cut-outs, giving an oval opening for the ears.
The crest ridge carries a number of longitudinal slots, possibly for the attachment of a crest piece. Since the ridge goes right to the edge of the helmet, it is unlikely that it was fitted with a nasal guard.
Small holes are pierced around the base of the skull and all around the cheek and neck guards for the attachment of leather lining pieces.
The neck guard has an upper portion of a trapesoidal shape and a lower one that is semicircular, with a pronounced fold between the two.
