Coolus helmet
Encyclopedia
The Coolus helmet was a type of ancient Roman helmet. It was produced from brass and, like the Montefortino type
with which it co-existed, was a descendent of Celtic helmet types.
It was fairly plain, except for some ridges or raised panels on the cheekpieces. It was globular or hemispherical in shape (some were spun on a lathe rather than hammered to shape) with a turned or cast soldered- or riveted-on crest knob.
The Coolus was replaced by the Imperial helmet
type, a more developed form also derived from a Celtic original.
Montefortino helmet
The Montefortino helmet was a type of Celtic, and later Roman, military helmet used from around 300 BC through the 1st century AD with continuing modifications...
with which it co-existed, was a descendent of Celtic helmet types.
It was fairly plain, except for some ridges or raised panels on the cheekpieces. It was globular or hemispherical in shape (some were spun on a lathe rather than hammered to shape) with a turned or cast soldered- or riveted-on crest knob.
The Coolus was replaced by the Imperial helmet
Imperial helmet
The Imperial helmet-type was a type of helmet worn by Roman legionaries; it replaced the Coolus type, and constituted the final evolutionary stage of the legionary helmet .-Sub-classification:...
type, a more developed form also derived from a Celtic original.