This helmet is hemispherical in form and is quite plain.
There are two rivet holes at the sides for the hinge plate of the cheek guards.
In this case, the crest ornament is missing.
References:
Paddock, J.M. (1993), "The Bronze Italian Helmet: The development of the Cassis from the last quarter of the sixth century B. C. to the third quarter of the first century AD" (University of London, Ph.D. Thesis), No.252 and Fig.166, 121
